@article { author = {El-Metwally, M. and El-Ashry, R. and Abd El-Aal, E.}, title = {Effect of Chemical Nematicides, Chicken Manure and Biocontrol Agents as a Control Method for Certain Plant Parasitic Nematodes Infecting Orchards under Field Conditions in Sharkia Governorate, Egypt}, journal = {Journal of Plant Protection and Pathology}, volume = {10}, number = {1}, pages = {1-6}, year = {2019}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2019.40550}, abstract = {A field treatment was conducted to evaluate the nematicidal activity of chicken manure and biopesticides (bio- arc , bio-zeid and nemex) viz. chemical nematicides (fydal 24 % SL , tervigo (2% SC), laguna (40% EC) and nemathorin (10% G) against plant –parasitic nematodes infecting fruit orchard located in Sharkia Governorate during 2018. Treatments of chicken manure was at the rate of 30 Kg/ tree , while that of biopesticides were applied at rate of 160 g/tree with bio-arc and bio-zeid , whereas nemex was applied at rate of 24 mL/ tree. Chemical nematicides were applied at rates of  15 mL//tree , 50 g/ tree , 24 mL/tree and 12 mL with fydal 24 % SL, tervigo , laguna and nemathorin , respectively. Samples were taken monthly during  three  months  after  application.  Results indicated that of the eight tested materials, fydal was the most effective in suppressing umbers of phytonematodes followed by chicken manure while among biopesticides , bio- arc was the least effective one. After one month of application, remarkable decreased in numbers of plant-parasitic nematodes was detected. For instance, in fydal and chicken manure treatments, percentages of reduction in numbers of Tylenchulus semipenetrans,   Pratylenchus   spp., Tylenchorhynchus  spp., Hoplolaimus spp.  and Helicotylenchus spp. were diminished by 49.75 %(40.92 %) ,56.97% (53.54%), 55.47% (55.83%), 50.53% (50.53%) and 52.52 % (50.42%), respectively. After two months of application, percentage of reduction was increased to reach 69.25 %(68.53%) ,81.26% (71.37%), 83.18% (80.08%), 86.92% (83.00%) and 81.77 % (61.93%), respectively for mentioned nematodes. On the other hand, after three months of application, no significant differences ) P ≤ 0.05) was noticed between fydal and chicken manure whereas, the biopesticides were the least effectiveness against plant –parasitic nematodes. Generally, results emphasized that chicken and biopesticides could be used to minimize the population density of plant- parasitic nematodes in citrus orchards. }, keywords = {control,chicken manure,biopesticides,Phytonematodes,citrus}, url = {https://jppp.journals.ekb.eg/article_40550.html}, eprint = {https://jppp.journals.ekb.eg/article_40550_871fb5f63faae4ddfd5a80902f252493.pdf} } @article { author = {Shahawy, Wafaa}, title = {Field Trials on Land Gastropods Infesting some Ornamental Plants at Kafr El-Sheikh Governorate}, journal = {Journal of Plant Protection and Pathology}, volume = {10}, number = {1}, pages = {7-11}, year = {2019}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2019.40553}, abstract = {Land molluscs became one of the most serious pests attacking many plants including ornamental plants. Occurrence of certain land gastropods associated with some ornamental plants at Kafr EL-Sheikh Governorate was conducted. Results revealed that the land snails, Eobania vermiculata and Succinea putris and the land slug Deroceras reticulatum were recorded on the tested plants. E vermiculata was the predominant species while the other identified gastropods showed lower infestation levels. Therefore ,the seasonal abundance of the predominant snail, E vermiculata was studied and results showed that the population of E vermiculata was increased during spring months (171.99 snails/ 1/2 m2) as compared to summer and autumn(149,34 and 59,33),respectively whereas the infestation was the least during winter (40.67 snails/ 1/2 m2). Malabar was superior among the tested plants since it attracted the highest number of snails with mean of (5.68 ± 1.56) snails/ 1/2 m2 followed by Hlibiscus, basil, kockia, DustyMiller, Manitoka and Royal palm, respectively. Both of Pricharida and Duranta were the least attractive to snails. Concerning the efficacy of certain pesticides against E vermiculata under field conditions, Data revealed that Agrinate was more toxic to snails than the other pesticides, since it achieved the highest reduction  percentage of snail population of  (69.03 ± 7.2  ) % followed by Vicarb with reduction of (55.87 ± 6.8)% while Uphold was the least in this respect with reduction percentage of (25.41±2.6)%.    }, keywords = {}, url = {https://jppp.journals.ekb.eg/article_40553.html}, eprint = {https://jppp.journals.ekb.eg/article_40553_e0101f9e927c6a01197adb21a0438ca0.pdf} } @article { author = {Gazzy, Alyaa and Mostafa, Nadia and Shahawey, Wafaa}, title = {Survey, Population Dynamics and Estimation of Damage of Common Land Snail Species on Some Vegetable Plants and Egyptian Clover at Some Regions at Kafr El-Sheikh Governorate}, journal = {Journal of Plant Protection and Pathology}, volume = {10}, number = {1}, pages = {13-18}, year = {2019}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2019.40557}, abstract = {Survey and population dynamics were carried out in two regions, Abu-Abdalla village, Sedi Salem District and Salait village, Quallen district at Kafr El- Sheikh Governorate during two successive seasons from 2015to2017 on egyptian clover, lettuce, and cabbage. The survey revealed the existence of four species of land snails, Monacha cantiana, Succinea putris, Theba pisana and Cochlicella acuta were predominant on egyptian clover and two vegetables crops. The population densities of these land snail species were studied on soil, stems and leaves of studied plants. The results showed that the highest population was recorded on leaves under field of vegetable plants during spring seasons except cabbage at Abu Abdalla, Sedi Salem district in 2015 and 2016. T.pisana presented in Lettuce and and Cabbage on Abu-Abdella village and was absent on all vegetable crops on the second village. while M. cantiana ,C.acuta and S.putris snails were recorded with highest numbers on Egyptian clover. On the other hand, S. putris was in heavy infestation on lettuce and cabbage in the two regions. The damage caused by different snail species M. cantiana and S. putris was studied on Egyptian clover.}, keywords = {Land snails,Monacha cantiana,Theba pisana,Succinea putris and Cochlicella acuta}, url = {https://jppp.journals.ekb.eg/article_40557.html}, eprint = {https://jppp.journals.ekb.eg/article_40557_116c9e09356b3b737661b85298ca7bf0.pdf} } @article { author = {Abdel-Moaty, R. and Hashim, S. and Tadros, A.}, title = {The Impact of the Leopard Moth Zeuzera pyrina L., (Lepidoptera: Cossidae) Infestation in Casuarina Trees on the Neighboring Pear Orchards in Egypt}, journal = {Journal of Plant Protection and Pathology}, volume = {10}, number = {1}, pages = {19-22}, year = {2019}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2019.40560}, abstract = {The impact and relative susceptibility and monitoring of the Leopard moth Zeuzera pyrina L., (Lepidoptera: Cossidae) infestation in pear orchards neighboring and non-neighboring to casuarina trees were evaluated at Borg el-Arab district, Alexandria Governorate , Egypt, during the two successive years 2015 and 2016. The mean rate of Z. pyrina infestation in pear trees neighboring to casuarina trees were 15 – 21% (mean, 18%). However, pear trees far away and not neighboring to casuarina trees showed significantly lower rate of the borer infestation (7 - 9%, mean 8%). On the other hand, the rate of Z. pyrina infestation in casuarina trees neighboring to pear trees 13 – 18% (mean, 15.5%). The degree of Z. pyrina infestation in casuarina trees surrounding pear trees was high (0.42 – 0.57, mean 0.5 moths / tree / year). The degree of infestation in pear trees surrounded by casuarina wind break trees was high (0.55 – 0.77, mean 0.66 moths / tree / year). The degree of infestation in pear trees not-surrounded by casuarina wind break trees was almost half degree (0.28 – 0.37, mean 0.325 moths / tree / year). In all cases, and during the two years of study, moths started to emerge in April and sometimes in May and continued mostly until November sometimes in October. Peaks of moths’ emergency were mostly in August. Summer months showed that, the majority of moths’ activity. Less mean numbers of emerged moths / tree were noticed in spring months, while autumn showed few numbers, and moths stopped emergence during winter months. The seasonal cycle of Z. pyrina moths consisted of 7 – 8 months of moths’ activity in casuarina trees and pear orchards. Generally, infestation in pear orchards rabidly multiplied and increased more than twice at the end of only two years. These rapid increases impose the urgent need of control Z. pyrina in casuarina trees as well as in pear orchards especially when they are surrounded by infested casuarina wind break trees.}, keywords = {}, url = {https://jppp.journals.ekb.eg/article_40560.html}, eprint = {https://jppp.journals.ekb.eg/article_40560_459c107dbbc341c6476a52b63f6fe348.pdf} } @article { author = {Mahmoud, M. and Ibrahim, I. and Khidr, A. and Abd-El Hameed, M.}, title = {Studies on the Genetic Variations between Field Strains of Pectinophora gossypiella (SAUNDERS) using Polymerase Chain Reaction (PCR) Technique}, journal = {Journal of Plant Protection and Pathology}, volume = {10}, number = {1}, pages = {25-32}, year = {2019}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2019.40565}, abstract = {Five different strains of the pink bollworm, Pectinophora gossypiella (Saunders) were used in the present study.The laboratory strain was used as a baseline in the molecular biology assays. Four strains were selected from natural popoulations, fields located in Qalubia, Gharbia, Menoufia and Kafr-Elsheikh Governorates. The molecular studies included the analysis of the plod genomic DNA of the tested strains under this study by using Random Amplified Polymorphic DNA (RAPD) method. A battery of five primers was used to evaluate the mutagenic differentiation among the five strains. The primer S4 generated the highest numbers of fragments (32 fragments). Both primers K15 and S8 generated 23 fragments. The lowest number of fragments appeared in primer C15 and primer P8, (18 fragments). The molecular sizes of fragments ranged between 180 and 1182bp. The RAPD patterns resulted from amplification of DNA of the field colony strains and laboratory strain of the pink bollworm P. gossypiella revealed that the lowest value of similarity index  (0.0%), which reflects the highest degree of change in DNA structure and sequences between the genomes of laboratory pink bollworm and those exposed to a wide spread of different insecticides  for controlling the pest in the fields. On the other hand, there is no compilitily similarity index between field strains and laboratory strain of pink bollworm. The highest similarity index between field strains and laboratory strain of the pink bollworm appeared in primer P8, while the lowest similarity index between field strains and laboratory strain of the pink bollworm appeared in primer K15. The primer S4 recorded that is no similarity index between Qalubia strain and each of laboratory and field strains. It is interrest to note that the less damaging effect to pink bollworm DNA could be attributed to a good detoxifying mechanism developed by the insect as a result of wide spread and long term exposure of insect larvae in additional to different thermal degrees in the fields}, keywords = {}, url = {https://jppp.journals.ekb.eg/article_40565.html}, eprint = {https://jppp.journals.ekb.eg/article_40565_3e3b72294dc8788f86bc1590bd33d58f.pdf} } @article { author = {Bakry, M. and Tolba, Eman and El-Zoghby, I.}, title = {Modeling the Impacts of Certain Climatic Factors on Population Density of the Plum Scale Insect, Parlatoria oleae (COLVEE) Infesting Mango Trees in Luxor Governorate, Egypt.}, journal = {Journal of Plant Protection and Pathology}, volume = {10}, number = {1}, pages = {33-42}, year = {2019}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2019.40568}, abstract = {The study was carried out throughout two successive years (2016/2017 and 2017/2018) at Esna district, Luxor Governorate, to recognize the ecological effects of certain climatic factors on the plum scale insect pest, Parlatoria oleae (Colvee) on mango trees to specify the proper timing for control. The obtained results showed that the pest population of P. oleae occurred on mango trees all the years and had three peaks of seasonal activity per year, which was recorded in October, April and July during the first year (2016/2017) and through in November, April and July during the second year (2017/2018). Furthermore, the percentages of infestation incidence by pest showed three peaks per year, during November, April and July in both years. It seems that, the climatic conditions of autumn months during the two years were more suitable for the total population density and its activity and the maximum values of the infestation incidence by P. oleae. The obtained results showed that, the effect of weather factors (mean daily of air temperature, mean of relative humidity and mean of dew point) on the pest population and on the percentages of infestation incidence during the two successive years emphasized that the effect of these factors varied from year to another. Also, the dew point was the most effective variable for the changes in the pest population and the percentages of infestation incidence by the pest during both years and on the two cumulative years.}, keywords = {Parlatoria oleae,Seasonal activity,Environmental conditions,mango trees}, url = {https://jppp.journals.ekb.eg/article_40568.html}, eprint = {https://jppp.journals.ekb.eg/article_40568_b5135e9e0821aea9ae9acfe4ade72a22.pdf} } @article { author = {Roshdy, Ola and Abou Zaid, Walaa and Refaei, Ghada}, title = {Biological Aspects and Life Table Parameters of the Predatory Mite, Neoseiulus californicus McGregor (Acari: Phytoseiidae) Reared on Different Diets}, journal = {Journal of Plant Protection and Pathology}, volume = {10}, number = {1}, pages = {43-47}, year = {2019}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2019.40571}, abstract = {The predator mite Neoseiulus californicus McGregor is an effective predator that is used to control the invasion of Tetranychus urticae Koch on crop plants. Experiments for rearing N. californicus on different food sources were carried out under laboratory condition (25±2ºC, 75+5 % RH). N. californicus was reared on three different food types; two types of phytophagous mites (Tetranychus urticae and Brevipalpus phoenicis Geijskes) and date palm pollens. In response to food type, the periods of N. californicus immature stages were 4.79, 8.14, and 11.79 days for females and 3.93, 6.71, and 10.71 days for males when fed on T. urticae, B. phoenicis, and date palm pollen, respectively.The developmental periods (life cycle) of both female and male individuals were longer when they fed on date palm pollen (14.07, 12.86 days for females and males respectively) compared with 6.93, 5.79 days for females and males in case of feeding on T. urticae and 10.29, 8.79 days for those reared on B. phoenicis.N. californicus males completed their developmental stages on the studied food types successfully ,however, N. californicus females were significantly affected by the type of food, which recorded the highest number of eggs per each female when fed on T. urticae (32.14 eggs), followed by females that fed on B. phoenicis and date palm pollen (13.29 and 3.86 eggs, respectively). Obtained results provide alternatives of T. urticae to rear N. californicus for mass production although the efficiency was not the same.    }, keywords = {biological aspects,life table parameters,Brevipalpus phoenicis,date palm pollen,Neoseiulus californicus,Tetranychus urticae}, url = {https://jppp.journals.ekb.eg/article_40571.html}, eprint = {https://jppp.journals.ekb.eg/article_40571_a8bf961fdafa4eb848525489c9d35f3c.pdf} } @article { author = {Elenany, Y. and Sharaf El-Din, H.}, title = {Detection and Identification of Novel Bacterial Strains Isolated from Fresh Clover Bee Honey}, journal = {Journal of Plant Protection and Pathology}, volume = {10}, number = {1}, pages = {49-52}, year = {2019}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2019.40580}, abstract = {Bee honey have a highly intensity and specialized microbiota which plays an important role in metabolism, immunity, growth as well as development an antagonistic effect against pathogens. Thus, the aim of work was isolation genotype characterization of some strains of lactic acid bacteria (LAB) from fresh clover bee honey. Five samples of fresh clover honey were analyzed to detect the microbiome contents.  Dilution method and cultivation in selective media was used for counting of LAB strains, and the isolates were identified by their morphological characteristics that measured using Gram staining method and screened by catalase activity.   Furthermore, the morphological characteristics of bacterial cells were examined using Scanning Electron Microscope (SEM). The genotype of isolated strains was carried out by Polymerase Chain Reaction (PCR) method.  The results showed that, two novel bacterial strains of LAB were isolated from fresh clover bee honey. The strains of LAB which identified were; Lactobacillus brevis MK250013 and Lactobacillus casei MK250003.}, keywords = {bee honey,lactic acid bacteria,Clover honey,SEM,PCR}, url = {https://jppp.journals.ekb.eg/article_40580.html}, eprint = {https://jppp.journals.ekb.eg/article_40580_9daaa2ad5034837756bec271cb5c9072.pdf} } @article { author = {Arafa, Olfat and Abd El-All, E .}, title = {Biological Parameters of the Conical Snail Cochlicella acuta (MÜLLER, 1774) (Gastropoda: Cochlicellidae) under Laboratory Conditions}, journal = {Journal of Plant Protection and Pathology}, volume = {10}, number = {1}, pages = {53-56}, year = {2019}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2019.40582}, abstract = {Biological parameters like as mating, pre-oviposition, oviposition, post-oviposition, and generation periods as well as growth rate of the pointed or conical snail Cochlicella acuta (Müller, 1774) (Gastropoda: Cochlicellidae)were studied in the Plant Protection Department, Faculty of Agriculture, Zagazig University under laboratory conditions. In 2017/2018,samples of pointed or conical snails of date palm were collected during its reproductive and activity season from highly infested palm tree orchards at Abo-Nagii farm, El-Kassassein, Ismailia governorate. The temperature and RH% values ranged from 19 to 28oC and 48 to 61, respectively. Snails immediately transported back to the laboratory where they were identified to species and kept in 1000 cc boxes "plastic containers" with tight fitting perforated covers , provided with fresh lettuce leaves (Lactuca sativa) as  a source of food reared and ovipostion site. Plastic containers were staked side by side with moist soil. The fresh lettuce leaves were checked daily and replaced with fresh one. The laboratory observations revealed that in spite of this species is hermaphrodite, the cross mating was essential for ovipostion as unmated ones did not lay any egg. Mating occurs when snail individuals reach their sexual maturity as calculated from adulthood until mating. Besides large adults produced more eggs than small ones over the whole breeding season; this period was 95 ± 28.4 days in average. Pre-oviposition period (from mating till laying first egg) lasted for an average of 17.3 ± 6.1 days. Oviposition period (from laying first egg till last one) averaged 84.3 ± 23.6 days during which snail individual deposited a total of 110 ± 59.5 eggs. Post-oviposition period (from last laid egg till mortality) was 140 ± 74.3 days. The generation period (from egg to egg) of this species extended to an average of 275.3 ± 32.1 day}, keywords = {Cochlicella acuta- Sexual maturity – Oviposition – Generation period – Growth rates}, url = {https://jppp.journals.ekb.eg/article_40582.html}, eprint = {https://jppp.journals.ekb.eg/article_40582_f47a05838c934b4b446fd31549243700.pdf} } @article { author = {Radi, Abeer and Ahmed, A. and Tolba, Eman}, title = {Role of Free and Bound Phenols with Certain Field Factors in the Population Density of Aphid Species and Onion Thrips Attacking Bread Wheat Cultivars under Drought Conditions}, journal = {Journal of Plant Protection and Pathology}, volume = {10}, number = {1}, pages = {57-64}, year = {2019}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2019.40585}, abstract = {The experiment of five of bread wheat cultivars (Sahel 1, Seds 4, Gemaza 9, Giza 168, and Misr 2) were investigated during (2015- 2016 and 2016- 2017) at the farm of Faculty of Agriculture, Assiut University, Assiut, Egypt. The considered field factors were represented in the climatic factors of daily maximum and minimum temperatures (°C), soil temperatures at 5 cm depth (°C), and the prevailed natural enemies with an estimation of phenolic contents (free and bound phenols) in the selected wheat cultivars. To investigate the efficiency of all considered factors together and each factor separately on the population fluctuation of onion thrips, Thrips tabaci Lindeman and aphid species (Mayzus persicae Sulz., Brivecoryne brassicae Linnaeus, and Rhopalosiphum padi Linnaeus) on the selected wheat cultivars under drought and field conditions in relation to the yields of cultivars. The mean numbers of thrips were higher than aphid species on most of the selected cultivars during the two studies seasons. The individuals of both insect pests were observed in the 15th of February, 2015 for the 1st season, while in the second season the infestations started in the 15th of January, 2016 on all of cultivars. The 1st season peaks by aphids were showed from the 15th of March to the 30th of April, 2016 on all cultivars, while two peaks of thrips population were observed on Sahel 1 and Seds 4, and three outbreaks on the rest of cultivars. The number of the peaks during the 2nd season by aphids and thrips were reached to two peaks for each pest during the 28th of April and the 15th of March, 2016. The efficiency (R2 x100) of all experimental considered factors were (72.98, 64.07, and 80.03%; respectively for aphids, thrips, and pests total grand). The considered factors were regulated the populations of pests during the studied seasons according to their efficiency in the following order for aphids: the natural enemies, the min. temperatures, the soil minimum temperatures were mainly participated with (20.847, 15.003, and 11.265 out of 72.98%; respectively for on all the cultivars), while The bound phenols were the least efficient factor (0.994 out of 72.98%). For thrips and the pests grand totals, the soil minimum temperature, the maximum temperature, and the minimum temperature were affected the population density by (22.099, 27.757; 12.914, 20.473; and 9.053, 11.377 out of 64.07 and 77.76%; respectively for thrips and the grand totals of pests) and the least efficient factor for thrips was free phenol contents (0.655 out of 77.76%, r= -1.082), and for the grand totals of pests were the natural enemies (0.169 out of 77.76%, r= 0.633). In both seasons, the greatest yield were obtained from from Giza 186 (178.33 and162.39   GY/10 plants; respectively in the 1st and the 2nd season). Meanwhile, the lowest one was recorded from Gemaza 9 (81.66 and 95.13 GY/10 plants; respectively in the 1st and the 2nd season).}, keywords = {Drought condition,Free and bound phenols,wheat aphids,onion thrips,cultivar susceptibility}, url = {https://jppp.journals.ekb.eg/article_40585.html}, eprint = {https://jppp.journals.ekb.eg/article_40585_a42de6c672ee39a7938fef78418fb150.pdf} } @article { author = {El-Serafi, Hala and Ghanim, A. and Awadalla, S. and Shalaby, Mona}, title = {Comparative Studies between an Artificial Diet and Ephestia kuhniella Zeller Eggs on the Biological Aspects of Coccinella undecimpunctata L. at Three Different Temperatures}, journal = {Journal of Plant Protection and Pathology}, volume = {10}, number = {1}, pages = {65-68}, year = {2019}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2019.40588}, abstract = {The objective of the present investigation was to evaluate rearing of Coccinella undecimpunctata L. on an artificial diet and Ephestia kuhniella eggs. Significant differences were observed between the artificial diet and E. kuhniella eggs on the incubation period and the total immature stages duration at the three tested temperatures. The life cycle of C. undecimpunctata was the shortest when reared on the artificial diet and E. kuhniella eggs at 30 ± 1ºc and 65 ± 5% R.H. and lasted 27.5 ±0.15 and 22.7 ± 0.20 days, respectively. The total larval survival rate was the highest for C. undecimpunctata when reared on E. kuhniella and recorded 86.67 %, 96.67% and 90% at the three different temperatures. The longest female and male longevity were observed when reared at 20 ± 1 oC on two diets. The high fecundity value was found at 25± 1 oC for two diets followed by 30 ± 1 oC. While, it was lowest at 20 ± 1 oC for C. undecimpunctata.}, keywords = {Coccinella undecimpunctata L,artificial diet and Ephestia kuhniella}, url = {https://jppp.journals.ekb.eg/article_40588.html}, eprint = {https://jppp.journals.ekb.eg/article_40588_5eb4c84106d36b329773bfc87abe0a60.pdf} } @article { author = {Ahmed, A. and Radi, Abeer and Tolba, Eman}, title = {Efficiency of Phenolic Contents and some Field Factors on the Population Abundance of Aphid Species and Onion Thrips Infesting Bread Wheat Cultivars under Irrigation Conditions}, journal = {Journal of Plant Protection and Pathology}, volume = {10}, number = {1}, pages = {69-75}, year = {2019}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2019.40590}, abstract = {The study was conducted during (2015/ 2016 and 2016/ 2017) at the farm of Plant Protection Department, Faculty of Agriculture, Assiut University, Assiut, Egypt on five wheat cultivars: Sahel 1, Seds 4, Gemaza 9, Giza 168, and Misr 2). To study the effects of phenolic contents (free and bound phenols), climatic factors (daily maximum (DMxT) and minimum temperatures (°C) (DMnT), soil maximum and minimum temperatures (°C) (SMxT and SMnT)  at 5 cm depth, and the natural enemies (N. E.) on the population density of onion thrips, Thrips tabaci Lindeman and aphid species (Mayzus persicae Sulz., Brivecoryne brassicae Linnaeus, and Rhopalosiphum padi Linnaeus) infesting bread wheat cultivars under irrigation conditions, with references to the yields of wheat cultivars. The invasions started in February during the 1st season and in January for the 2nd season on all of wheat cultivars. The invasions of thrips individuals were higher than aphids in almost of wheat cultivars during the two seasons of the study. In the 1st season, aphid’s populations showed three peaks on all cultivars in the 31th of March, 15th of April, and in the 30th of April. Meanwhile, thrips individuals registered two peaks: the 1st peak was in the 15th of March and the second were occurred in the 31th of March. Respect to the 2nd season, aphids recorded three peaks in 15th, 28th of February and 15th of March on all wheat cultivars and thrips recorded two peaks of fluctuations in the 28th and 15th of March. All of the considered factors were contributed together in forming the patterns of the population density (R2) by 53.62, 60.44, and 71.65%; respectively for aphids, thrips and the grand total of pests during the two seasons of the study. In case of Aphids, (DMnT) was the highest participated factor in regulating the population (16.906 out of 53.62%), the free phenol contents showed that the only negative correlation and ranked the second efficient factor by (16.62 out of 53.62%), afterwards the third efficient factor was (DMxT) which shared with (11.073 out of 53.62%), and finally the natural enemies showed the least efficient factor by (0.026 out of 53.62%) on all wheat cultivars. The population for both thrips and grand total were mostly under controlled by the same factors,(DMnT) was the highest efficient factor (18.614 out of 60.48% and 24.525 out of 71.65%; respectively for thrips and the grand total of pests). Then, (N. E.) played the second role with (13.337 out of 60.44%) for thrips and (15.032 out of 71.65%) for the grand total. Afterwards, (DMnT) ranked the third factor (12.794 out of 60.44% and 14.800 out of 71.65%; respectively for thrips and the grand total of pests). The least efficient factor for thrips was (SMxT) which participated by (0.240 out of 60.44%) and for the grand total of pests were bound phenol contents (0.129 out of 71.65%). Top yields were gained from Giza 186 and Misr 2 (218.0, 213.4 and 207.3, 198.8 GY/10 plants; respectively during the 1st and 2nd seasons. Afterwards, Gemeza 9 ranked the third cultivar in the 1st season (182.7 GY/10 plants) and Sahel 1 for the 2nd season (192.8 GY/10 plants)}, keywords = {Irrigation condition,phenolic content,wheat aphids,onion thrips,wheat resistance}, url = {https://jppp.journals.ekb.eg/article_40590.html}, eprint = {https://jppp.journals.ekb.eg/article_40590_eb664d39cc85f09c19baf19c47af078d.pdf} } @article { author = {EL- Shennawy, Rania and Husseen, A. and Kandil, Mervat}, title = {Latent Effects on Adults’ Emergence of Pectinophora gossypiella (Saund.) and Earias insulana (BOISD.), Resulted from Magnetized Pupae}, journal = {Journal of Plant Protection and Pathology}, volume = {10}, number = {1}, pages = {77-80}, year = {2019}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2019.40592}, abstract = {In this study, experiments were performed to investigate the effect of the exposure of pupal stage (24 h old) of Pectinophora gossypiella and Earias insulana to power supply magnetic flux (MF) of level 180mlli- tesla for different times (2, 6 and 12 minutes) and its latent effect on  emerged adults. Results showed that a direct effect on exposed pupae caused a percent of pupal mortality in bothinsects that increased by the increase of exposure time. Data recorded a significant elongation in the pupal duration of both insects, as a result of magnetic exposure with more efficiency for 12min. exposure followed 6min. exposure and no observed effect for 2min. exposure. Data also indicated a high reduction in the percent of emerged adults resulted from magnetized pupae in contrast the percent of adult malformed was highly increased in comparison with control.  The reduction in adult emergence and malformed percent was increased by the increase of exposure time in case of P. gossypiella treatment while, the process is reversed for E. insulana.   A high reduction in numbers of eggs laid by females resulted from (12 and 6min.) MFs exposure was also reported differs to the slight effect of (2min.) MFs exposure for both  P. gossypiella and E. insulana,  in comparison with control. In addition a high reduction in egg hatchability percentages was also recorded with more efficiency on E. insulana especiallyin12 min. MFs exposure compared to control.}, keywords = {P. gossypiella Magnetic,biology and magnetic power times}, url = {https://jppp.journals.ekb.eg/article_40592.html}, eprint = {https://jppp.journals.ekb.eg/article_40592_4ad66f87101c781d42f18a500a062632.pdf} } @article { author = {Kandil, Mervat and Hussain, A.}, title = {Study the Effect of Times Exposure to Magnetic Power on Fertility and Fecundity of the Pink Bollworm, Pectinophora gossypiella (Saunders) (Lepidoptera: Gelechiidea) Adult under Laboratory Conditions}, journal = {Journal of Plant Protection and Pathology}, volume = {10}, number = {1}, pages = {81-85}, year = {2019}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2019.40593}, abstract = {The adult stage of pink bollworm, Pectinophora gossypiella (Saunders)  laboratory strain was exposed to magnetic fields (180 mt) at three times (12, 6 and 4 min) to study the effect of exposure time on mortality, morphological, oviposition, total eggs laid and fecundity and fertility comparison to the control under laboratory conditions 26±1° C and 75±5 RH. The results showed  that the mortality percent of treated females and males during mating was high increased when exposed to magnetic power (180 mlt) for  12 min (39% mortality) followed by  22 and  13% mortality when adult exposed to 6 and 4 min, respectively. While, the female magnetized sexed with untreated male the percent mortality decreased to 3-4 times compare to anther treatment (9, 6 and 2%, respectively). Data obtained recorded that decreasd in oviposition period in the most treatments time; vice versa was happened with the adult female longevity that increased in the most treatments and contrary in male adult longevity. Eggs laying of treated adult female had significant reduction especially in magnetic field with exposed to12 and 6 minutes as well as hatchability percentages.}, keywords = {Magnetic,times,Pectinophora gossypiella,and survived,fecundity and longevity}, url = {https://jppp.journals.ekb.eg/article_40593.html}, eprint = {https://jppp.journals.ekb.eg/article_40593_982790d64a6c5a906d6139e3904d3422.pdf} } @article { author = {Marei, Gehan and Rabea, Entsar and Badawy, M.}, title = {In Vitro Antimicrobial and Antioxidant Activities of Monoterpenes against some Food-Borne Pathogens}, journal = {Journal of Plant Protection and Pathology}, volume = {10}, number = {1}, pages = {87-94}, year = {2019}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2019.40594}, abstract = {The present work describes the antimicrobial activity of twenty-five monoterpenes against Gram-negative Escherichiacoli and Gram-positive Staphylococcusaureus and antifungal activity against Aspergillus flavus. The antibacterial activity was evaluated by broth microdilution technique as a minimum inhibitory concentration (MIC) and the antifungal activity was estimated by mycelia radial growth technique as (EC50). The results showed that thymol and α-terpineol were the most potent against E. coli with MIC of 45 and 55 mg/L, 135 and 225 mg/L against S.aureus, respectively. The results also showed that thymol exhibited the highest antifungal activity against A. flavus with EC50 20 mg/L. Furthermore, the antioxidant properties were explored using N,N-dimethyl-1,4-phenylenediamine (DMPD) and the results showed that geraniol were the most potent compound (IC50 = 19 mg/L).}, keywords = {Monoterpenes,Escherichia coli,Staphylococcus aureus,Aspergillus flavus,antimicrobial activity,Antioxidant activity}, url = {https://jppp.journals.ekb.eg/article_40594.html}, eprint = {https://jppp.journals.ekb.eg/article_40594_177668bce1823209680974265e03b323.pdf} }