@article { author = {Ismail, I.}, title = {Studying the Stability of Some Metalaxyl Wettable Powder Formulations Currently Applied in Egypt}, journal = {Journal of Plant Protection and Pathology}, volume = {12}, number = {1}, pages = {1-4}, year = {2021}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2021.149513}, abstract = {Three commercial metalaxyl wettable powder (WP) formulations 15% were collected from different sources in Egypt as one of them was locally formulated and the other sources of formulations were ready-made from China and Jordan. The formulations under investigation were a mixture of metalaxyl and copper oxychloride currently applied in Egypt where this study was conducted to investigate the stability of metalaxyl as well as studying the formation of its relevant impurity 2, 6-dimethylaniline after storage at 54±2 oC and exposure to sunlight for different intervals. Identification and determination of metalaxyl and its relevant impurity content were achieved using GC–FID. From the obtained results metalaxyl showed that, high stability after storage at 54 ±2 oC, which resulted in a decrease in the rate of the formation of relevant impurity 2,6-dimethylaniline, on the other hand metalaxyl revealed that, slightly affected after exposure to sunlight compared to storage at 54 ±2 oC and the formation rate of relevant impurity was relatively higher than storage at 54 ±2 oC, but the amount of relevant impurity 2,6-dimethylaniline was in allowed limits for all sources before and after storage, in addition to that there was no a variation in the rate of degradation of metalaxyl and the amount of its relevant impurity 2,6-dimethylaniline for all sources under investigation.}, keywords = {Metalaxyl,2,6-dimethylaniline,Degradation,impurities,GC–FID}, url = {https://jppp.journals.ekb.eg/article_149513.html}, eprint = {https://jppp.journals.ekb.eg/article_149513_b61f2e62f89455df1ea4703506e8bc0b.pdf} } @article { author = {Ali, A.}, title = {Efficacy and Residual Effect of Abamectin and Chlorpyrifos-Methyl against the Second Larval Instar of the Cotton Leafworm, Spodoptera littoralis (BOISD.) Under Field and Semi-Field Condition}, journal = {Journal of Plant Protection and Pathology}, volume = {12}, number = {1}, pages = {5-9}, year = {2021}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2021.149514}, abstract = {The initial mortality and residual effect of abamectin and chlorpyrifos-methyl against the second instar larvae of the leafworm, Spodoptera littoralis (Boisduval) and  beneficial arthropods were evaluated on tomato crop during 2019 and 2020 growing seasons under field and semi field conditions.The obtained data were revealed that Chlorpyrifos-methyl gave 100% initial mortality one to five days in 2019 and one to three days in 2020 growing season after application when the recommended rate was used in both seasons.Also, abamectin expressed 100 and 96% initial mortality during the first 24 hr after application in 2019 and 2020 growing seasons, respectively.When the recommended rate was applied,abamectin and chlorpyrifos-methylwere completely lost their toxic residues after 7.55 and 18.39 in 2019 and7.64 and 16.77 days during 2020 growing season of field application, respectively.On the other hand, abamectin had negatively effection on the population of predators at the first day after application then the population was turned back to its normal abundance after 48hr, particularly with half of the recommended rate as well as the field rate of application in both seasons. However, chlorpyrifos-methyl was showed negative impact on the predators, which resulted 100% reduction of predators' population within 96 hr post application, and then the percentage reduction continuously increased till day 13 then it decreased starting from day 14.Therefore, it could be recommended that using abamectin for controling Lepidopterous pests on vegetables to minimize the pre-harvest interval, which makes these crops edible for human use shortly after treatment and also to preserve beneficial predators.}, keywords = {residual effect,Abamectin,Chlorpyrifos-methyl,Spodoptera littoralis,field condition,Semi-field condition}, url = {https://jppp.journals.ekb.eg/article_149514.html}, eprint = {https://jppp.journals.ekb.eg/article_149514_ffb62d75bddbe1b1ec6a8f44f58c22f2.pdf} } @article { author = {Hashem, A. and Ramadan, Marwa}, title = {Nanoemulsions of Chamomile and Cumin Essential Oils: As an Alternative Bio-rational Control Approach against the Red Flour Beetle, Tribolium castaneum}, journal = {Journal of Plant Protection and Pathology}, volume = {12}, number = {1}, pages = {11-17}, year = {2021}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2021.149515}, abstract = { Essential oil (EO) nanoemulsion is a new approach to formulate and convey insecticides and to minimize some of the common shortcomings associated with the conventional formulations of synthetic insecticides and also of essential oils. The aim of the present was to develop an oil-in-water (O/W) nanoemulsion of the essential oils of chamomile (Matricaria chamomilla L.) and cumin (Cuminum cyminum L.), and assess their lethal and sublethal toxicity to the red flour beetle Tribolium castaneum (Hersbt).  The nanoemulsions of EO were characterized by droplet sizes of 341.4 and 387.1 nm for the chamomile and cumin, respectively. The polydispersivity (PDI), viscosity (cP), zeta potential (mV) and conductivity (mS/cm) of the nanoemulsions were also characterized. The cumin nanoemulsion exhibited higher lethal toxicity to the flour beetle, besides of compromising the insect weight gain while impairing their food consumption and conversion rate in sublethal exposure. Cumin EO nanoemulstion also sparked anti-feeding activity, reduced progeny production and prevented grain weight loss by the red flour beetle indicating its potential for stored product protection.}, keywords = {Essential oils,Nanopesticides,Stored product beetles,insecticidal activity}, url = {https://jppp.journals.ekb.eg/article_149515.html}, eprint = {https://jppp.journals.ekb.eg/article_149515_88097ea712767b3fe84698302a3503e8.pdf} } @article { author = {Ghanim, A. and El-Serafy, Hala and Hassan, Horia and Mohamed, Nadia and Abu El Matti, Faten}, title = {Biological Aspects of Two Coccinellid Predatory Insects Reared on Artificial Diets and Natural Preys under Constant Temperature}, journal = {Journal of Plant Protection and Pathology}, volume = {12}, number = {1}, pages = {19-22}, year = {2021}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2021.149516}, abstract = {Laboratory experiments were carried out in the Insectary of Economic Entomology Department, Faculty of Agriculture, Mansoura University to develop two artificial diets for rearing coccinelled predators during the period from 2017 till 2019. The results showed that the two predators reared successfully on these diets and the average period of larval instars lasted 24.64±2.5 and 21.67 ± 2.22 days for Hypodamia tridecimpunctata L. and Chilomenus propinqua isis(Mulsant)when reared on the artificial diet (AD1), while that were recorded 19.9±2.1 and 17.6±1.9 days when these predators reared on the artificial diets AD2 respectively. The pupal stage was durated in average of 6.24±0.48 and 5.42±042 days when reared on the artificial diet(AD1)for these two coccinellid predators respectively. Meanwhile the data indicated that the pupal stage lasted in average of 5.5±0.9 days and 4.95±0.97 days when reared on the artificial diets AD2. The female average fecundity of H. tridecimpunctata and C. propinqua isis were 150.7±8.1 and 193.4±10.5 eggs when these predators reared on artificial diet(AD1). Meanwhile the obtained results showed that the average fecundity of H. tridecimpunctata and C. propinqua isis females recorded 189.7 ± 10.6 and 250.8±14.6 eggs respectively when this predators reared on artificial diets (AD2). It can be concluded that the artificial diets (AD2) was very efficient for rearing H. tridecimpunctata and C. propinqua isis as the larval stage duration were two shorts on artificial diet (AD2) than artificial diet (AD1). The obtained data cleared that the females of each species deposited higher number of eggs on artificial diets (AD2).}, keywords = {Artificial diets,Biology aspects,Hypodamia tridecimpunctata L,Chilomenus propinqua isis (Mulsant)}, url = {https://jppp.journals.ekb.eg/article_149516.html}, eprint = {https://jppp.journals.ekb.eg/article_149516_36d1f0a0696aa68c7468a5380ec83973.pdf} } @article { author = {Ghanim, A. and El-Serafy, Hala and Hassan, Horia and Abu El Matti, Faten}, title = {Ecological Studies on Certain Lepidopterous Insects Attacking Potato Plants at Dakhlia Governorate}, journal = {Journal of Plant Protection and Pathology}, volume = {12}, number = {1}, pages = {23-29}, year = {2021}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2021.149517}, abstract = {Experiments in the field conducted to evaluate population density and effect of temperature and relative humidity of five lipedoptereous insect species attacking potato plants during the two successive seasons 2017 – 2018 at Meniat El-Naser region Dakhlia Governorate. The results showed that Phathorimia operculella (Zeller) had four peaks in summer plantation and the highest peak was found in the first week of May, while in the winter plantation this insect recorded two peaks and the high peak was found during 4th week of October, during tested seasons 2017 and 2018. Data revealed that Euzophora osseatella Treitske characterized by two peaks in the two potato plantations. The results revealed that, Tuta absoluta Povolony had three peaks in each summer and winter potato plantations, respectively. The obtained data assured that Spodoptera littoralis (Boisd) had three peaks in the summer and winter plantations and the highest peak were found during late of March, throughout summer plantation and in the winter plantation during 3rd week from September month. Three peaks during summer seasons plantation were recorded on Spodoptera exiguae (H) while in winter seasons plantation recorded two peaks during the two tested years. Population density during the tested successive years, data obtained of "temperature degrees" and "relative humidity" resulted that, the correlation degree differed from slightly positive or negative to highly significant positive. }, keywords = {Ecological studies,Lepidopterous species,Summer and winter potato plantations,Meniat El-Naser}, url = {https://jppp.journals.ekb.eg/article_149517.html}, eprint = {https://jppp.journals.ekb.eg/article_149517_ef098052db42715063683ed66a812e64.pdf} } @article { author = {Askar, S.}, title = {Efficiency of Three Coccinellid Species against Brevicoryne brassicae (L.) (Homoptera: Aphididae) in Cabbage Fields at El-Behera Governorate, Egypt}, journal = {Journal of Plant Protection and Pathology}, volume = {12}, number = {1}, pages = {31-35}, year = {2021}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2021.149518}, abstract = {The efficiency of three Coccinellidae species against Brevicoryne brassicae (L.) (Homoptera: Aphididae) in cabbage fields were carried out at El-Behiera Governorate, Egypt in tow successive season during the period from 4th August to 27th October, 2017 and 2018. When Coccinella septempunctata was released with 100 adults/ 1000 plants, the general mean number of B. brassicae was 29.24 and 31.96 in season 2017 and 2018, respectively. On the other hand, releasing C. septempunctata with 500 adults/ 1000 plants decreased the general mean number of B. brassicae by 13.16 and 13.86 in season 2017 and 2018, respectively. In season 2017, when 100 adults of C. undecimpunctata were released at the beginning of the study the population increased after four weeks recording 0.25 adult individual / plant. Meanwhile when 500 C. undecimpunctata were released in the same season, the population increased gradually and recorded the highest number at the end week of the study period. The Population fluctuations of S. interruptus did not affect the density of B. brassicae as well as the adult predator released. Number of B. brassicae increased gradually in season 2017 recording the highest number of 148 individuals/ plant.}, keywords = {preferential feeding,Release,field control,cabbage,Coccinellidae,Brevicoryne brassicae}, url = {https://jppp.journals.ekb.eg/article_149518.html}, eprint = {https://jppp.journals.ekb.eg/article_149518_db5e1feb706a7efcc0de96b68b8b9c56.pdf} } @article { author = {Amer, Marwa and Abdel-Razak, Soad and El-Sobky, Hanan}, title = {Influences of Some Insect Pests as Prays on Biology and Consumption Rate of Predator, Oruis albidipennis (Reuter) (Hemiptera, Anthocoridae) under Laboratory Conditions}, journal = {Journal of Plant Protection and Pathology}, volume = {12}, number = {1}, pages = {37-42}, year = {2021}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2021.149519}, abstract = {Results clarified that, prey-type profound effects on measured performance traits. Lowest eggs incubation period recorded for predators fed on A. craccivora nymphs, while highest observed for those fed on P. citri nymphs. Shortest total nymphal developmental period recorded for nymphs fed on A. craccivora nymphs, while longest for those fed on P. citri nymphs. Highest survival rate observed for predator that fed on eggs of E. kuehniella, while shortest recorded for those fed on P. citri nymphs. Daily female ovipositional rate was high in predator culture reared on E. kuehniella eggs comparing with those fed on P. citri nymphs. Fecundity was high for predator fed on E. kuehniella eggs, while low when fed on P citri nymphs. Adult females and males fed on A. craccivora nymphs had significantly longer life spans compared with those fed on others. Sex-ratio (%female) was significantly high when predator fed on A. craccivora nymphs.  During the nymphal period, O. albidipennis consumed significantly more eggs of E. kuehniella than other-types, whereas lowest were P citri nymphs. Adult females consumed significantly more E. kuehniella eggs than other-types, while Adult males preferred to consume A. craccivora nymphs. Data obtained suggested that O. albidipennis biology and consumption rate influenced by three tested preys. E. kuehniella eggs and A. craccivora nymphs were most favorable diet for predator. Although, P citri nymphs were less suitable for predator,but O. albidipennis could survive and reproduce feeding on it which considered as an important advantage attributed as a biological control agent.}, keywords = {biological control,consumption rate,Oruis albidipennis,Ephestia kuehniella,Aphis craccivora,Planococcus citri}, url = {https://jppp.journals.ekb.eg/article_149519.html}, eprint = {https://jppp.journals.ekb.eg/article_149519_45310154305c40e7bbb46a70d6ce932e.pdf} } @article { author = {Haris, H.}, title = {Efficiency of Some Insecticides Alone and Mixed with Mineral Oil KZ on Cotton Mealybugs, Phenacoccus solenopsis (Tinsley) Hemiptera: Pseudococcidae}, journal = {Journal of Plant Protection and Pathology}, volume = {12}, number = {1}, pages = {43-46}, year = {2021}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2021.149520}, abstract = {Cotton mealybugs, Phenacoccus solenopsis, (Tinsley) Hemiptera: Pseudococcidae, caused major loss in economic crops at over the world. This study was conducted to test and evaluate effect of some insecticide classes on the cotton mealybugs P. solenopsis, in the field condition on Jews mallow, Corchorus olitorius, L., and okra, Abelmoschus esculentus, L., on Nage Hamade, Egypt. This treatment was Actellic 50 %EC , KZ oil 95% EC (mineral oil), Actellic 50 %EC + KZ oil , Beauveria bassiana (Biothiana), Biothiana + KZ oil (0,75L/ 100L), Biothiana+ KZ oil  (0,375L/ 100L), Metarhizium anisopliae  (Biometa), Biometa+ KZ oil (0,75L/ 100L) and Biometa+ KZ oil  (0,375L/ 100L). All treatment had high effective on nymph than adult. This date showed that high effect was recorded by Actellic 50 %EC + KZ oil on both crop. Biothiana had high effect than Biometa in case used solitary or mixed with KZ oil. Statically analysis shows that the high effect was recorded by Actellic 50 %EC + KZ oil followed by Actellic 50 %EC , bioinsecticides mixed with KZ oil, bioinsecticides solitary  and finally KZ oil only.}, keywords = {Phenacoccus solenopsis,mineral oil,Actellic 50 %EC,KZ oil 95% EC,Beauveria bassiana,Cotton mealybug}, url = {https://jppp.journals.ekb.eg/article_149520.html}, eprint = {https://jppp.journals.ekb.eg/article_149520_3c8d51ccafd8182e58223e18bbe699db.pdf} } @article { author = {Hagag, Eman}, title = {Evaluation of Metabolites of Myrothecium verrucaria as Biological Nematicide against Root-knot Nematode, Meloidogyne incognita in Vitro and in Vivo on Sugar Beet Plants}, journal = {Journal of Plant Protection and Pathology}, volume = {12}, number = {1}, pages = {47-53}, year = {2021}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2021.52745.1007}, abstract = {Nematicidal activity of heat-sterilizing filtrate culture of Myrothecium verrucaria was evaluated against Meloidogyne incognita in Vitro and the metabolites formulated as granules of M. verrucaria were prepared and tested on sugar beet plants infested with M. incognita comparison with DiTera™ and Rugby 10%G, under greenhouse conditions. Laboratory results showed that sterilized culture filtrate of the fungus M. verrucaria either by syringe or by autoclaving significantly reduced the percentages of egg hatching and increased the percentage of 2nd stage juveniles (J2) mortality of M. incognita. The most effective reductions of hatching were obtained at 50% concentration with the sterilized filtrate by autoclaving (94.23%), while the most effective reached 96.70% increasing in the percentage of mortality of J2 after 3 days from treating by 50% concentration in case the sterilized filtrate by syringe. Results of  greenhouse experiment showed that, all treatments by the prepared fungal formulae of M. verrucaria or DiTerawith different rats significantly reduced the number of galls on sugar beet roots and final nematode population (J2) in soil compared with control (nematode only). The higher rate (0.2 g /pot) was achieved the highest reduction in root-galling (86%) with DiTera treatment and the highest reduction in (J2) with fungal formulae treatment (92.2%). Improvement in plant growth parameters were noticed by treatments. Analysis by GC-MS of the fungus metabolites was identified compounds to have antimicrobial and nematicidal activities. The prepared formulae from the Egyptian isolate of M. verrucaria can be used as safety bio-nematicide against M. incognita on sugar beet.}, keywords = {Myrothecium verrucaria,Bio-nematicide,Meloidogyne incognita,Sugar beet}, url = {https://jppp.journals.ekb.eg/article_149525.html}, eprint = {https://jppp.journals.ekb.eg/article_149525_9173e13d42516a2285527f4d42465ee0.pdf} } @article { author = {Soliman, Ahmed}, title = {The Impact of Fortification of Mulberry Leaves with the Yeast Saccharomyces cerevisiae and the Blue Green Algae Spirulina platensis on some Quantitative Parameters of Silkworm Bombyx mori (L.)}, journal = {Journal of Plant Protection and Pathology}, volume = {12}, number = {1}, pages = {55-59}, year = {2021}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2021.58388.1011}, abstract = {The present investigation was conducted to study the effect of fortification of mulberry leaves with different concentrations of baker's yeast Saccharomyces cerevisiae extract and blue-green algae Spirulina platensis extract on some quantitative parameters of Bombyx mori larvae and cocoons. Statistical analysis of the obtained data revealed that all larval treatments showed a significant increase in the larval and cocoon weights, especially at concentrations 0.5 % of yeast and 0.05% of spirulina.Feeding 5th larval instar with mulberry leaves at concentrations 0.5 % yeast and 0.05% spirulina, lead to increase the larval weight by about 55 % and 30%, respectively, when compared with the control. The same trend was observed in pupal weight, cocoon weight and cocoon shell weight. Larval treatments with yeast extract at concentration 0.5% increased the weights of pupa (0.850 gm), cocoon (0.908 gm) and cocoon shell (0.216 gm) by about 30%, 16% and 27%  as compared with controls which were 0.561gm, 0.781gm and 0.170 gm, respectively. On the other hand,  all larval trials with spirulina extracts remained at the second grade of implementation on the pupal weight, cocoon weight and shell weight. However, feeding B. mori larvae with yeast extract significantly increased the silk ratio and the total haemolymph protein comparing with the spirulina treatments or control ones.}, keywords = {Bombyx mori,yeast,Saccharomyces cerevisiae,algae,Spirulina platensis,Cocoon parameters}, url = {https://jppp.journals.ekb.eg/article_153321.html}, eprint = {https://jppp.journals.ekb.eg/article_153321_6c440cc67f622cd69e7b8eaf48a7f173.pdf} } @article { author = {Sakla, Rasha and Farag, M. and El-Sayd, Asmaa}, title = {Evaluation of Kz Mineral Oil for Molluscicidal and Biochemical Activities against White Garden Snail Theba pisana (Müller) as a Safe Alternative to Pesticides and Honey Bee Apis mellifera L. Friendly Compound}, journal = {Journal of Plant Protection and Pathology}, volume = {12}, number = {1}, pages = {61-65}, year = {2021}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2021.58247.1010}, abstract = {This work was conducted to evaluate the molluscicidal activity of Kz mineral oil compared to methomyl insecticide against one of the most serious land snails; white garden snail Theba pisana under laboratory conditions. The toxicity changes in juveniles and adults of T. pisana snail treated with three concentrations (1.25, 2.5 and 5 %) for Kz oil and (0.031, 0.063 and 0.125 %) for methomyl were evaluated using dipping technique of lettuce and cabbage leaves.  Results indicated that the tested concentrations of Kz oil had toxic effect on both juveniles and adults increasing with time passage and concentration. The highest mortality percentage obtained with Kz (5%) recorded (53.33 %) and (46.67 %) for juveniles & adults with lettuce leaves, respectively however the same concentration gave (40%) and (26.67%) mortality for juveniles & adults with cabbage leaves, respectively after three weeks post treatment. Regarding to methomyl pesticides, the toxicity effect increased also by time passage and concentration where the highest mortality in both juveniles & adults recorded (66.67% & 46.67 %), respectively when lettuce leaves are dipped in 0.125 % methomyl. Treatment with all concentrations of Kz oil and methomyl exhibited remarkable reduction in amylase and invertase activities compared to control. Furthermore, Kz oil showed very low toxic effect to adults of Apis mellifera by feeding whereas, toxicity was almost non- exist when bees were in contact with treated leaves.}, keywords = {Theba pisana,mineral oil,Apis mellifera L,Vital enzymes}, url = {https://jppp.journals.ekb.eg/article_153325.html}, eprint = {https://jppp.journals.ekb.eg/article_153325_8eb9162acc3c44499e5ba1d09efdc8e6.pdf} } @article { author = {Shoukry, Mina and Al Gazar, T. and EL-Sheshtawi, M.}, title = {Ability of Some Antagonistic Fungi for Controlling Cucumber Downy Mildew Disease Caused by Pseudoperonospora cubensis}, journal = {Journal of Plant Protection and Pathology}, volume = {12}, number = {1}, pages = {67-69}, year = {2021}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2021.57331.1009}, abstract = {The aim of this study is to find an effective alternative method for controlling cucumber downy mildew disease caused by Pseudoperonospora cubensis by using eco-frind by fungi such as Trichoderma viride and Trichoderma harzianum instead of chemical fungicide like copper acrobat under greenhouse conditions. Sprayed method of  antagonistic fungi spore suspension was used on plants at a rate of 1 x 107 colony forming unit (cfu). By applying it before any symptoms of infection appear (in a protective method), and ten days after the appearance of symptoms of infection (in a curative method). The results of the obtained experiment here showed that T. harzianum was superior during different growth periods up to 90 days, as it gave 44.30% disease incidence and 19.26% disease severity compared to both control (100% disease incidence as well disease severity) and the chemical fungicide (66.67% disease incidence and 25.93% disease severity). The results of  a curative trial also showed T. harzianum was given during different growth periods up to 90 days, where 40% disease incidence and 31% disease severity compared to control (100% disease incidence and disease severity 74.44%) and chemical fungicide (20% disease incidence and 29.49% disease severity). While T. viride achieved moderate results as compared to control (60% disease incidence and 27.22% disease severity).From the results obtained, it is evident that T. harzianum  gave better results than T. viride, and therefore we recommend using it in resisting downy mildew  in cucumber.}, keywords = {downy mildew,Pseudoperonospora cubensis,Trichoderma harzianum,Trichoderma viride,biological control,Greenhouses}, url = {https://jppp.journals.ekb.eg/article_149526.html}, eprint = {https://jppp.journals.ekb.eg/article_149526_8eaf102a24fc79b9d035ae07b0b149b2.pdf} } @article { author = {Morsi, Ghada}, title = {Study the Effect of Two Mineral Compounds for Controlling the Peach Fruit Fly, Bactrocera zonata, Saunders on Mango Groves in Egypt}, journal = {Journal of Plant Protection and Pathology}, volume = {12}, number = {1}, pages = {71-76}, year = {2021}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2021.149521}, abstract = {Experiments executed at two experiential farms in Al-Adliya, Belbeis, Sharkia and Giza Governorate, during seasons 2019-2020, on Mango orchards by using two mineral products instead of using insecticides that may cause resurgence of pest strains resistant, emergence secondary pests by disposal of natural enemies, and raise growing public interests over issues relevant to public health, environmental quality and food safety. Therefore, there is an immediate need to incubate an alternative and environmentally suitable method for B. zonata management. This experiment evaluated treatments efficacy, kaolin and calcium carbonatecompared withtraditional insecticide Malathion 57%, Data explained in seasons, male numbers of B. zonata captivated every week by sticky-traps were low on the trees sprayed by kaolin and calcium carbonate than Malathion. In Al-Adliya farm lowest infestation for both of fallen and stable fruits recorded per tree sprayed with calcium carbonate average, 25.12 and 17.01% for fallen fruits and 2.22 and 2.10% for stable fruits respectively for seasons 2019-2020. Data reported, the tested formulations in area situation showed significantly depression rate, 54.94 to 81.78 for fallen and stable fruits. Modest infestation percent in Giza farm for both of fallen and stable fruits were restricted/tree in kaolin with average 20.02; 12.14 and 3.42; 4.02 for fallen and stable fruits in 2019-2020 seasons, respectively. Tested compounds kaolin and calcium carbonate able to limit B. zonata, infestation.}, keywords = {B. zonata,Infestation,fallen fruits,stable fruits,kaolin,calcium carbonate and malathion}, url = {https://jppp.journals.ekb.eg/article_149521.html}, eprint = {https://jppp.journals.ekb.eg/article_149521_cc3cb12c531b7d5d37812c57ec7d550c.pdf} } @article { author = {Askar, S. and El-Aw, M. and Draz, K. and Abd El-wahab, Horia and Khalaf-Allah, Asmaa}, title = {Effect of Potato Varieties on the Biology and Life Table Parameters of Potato Tuber Moth Phthorimaea operculella under Laboratory Conditions}, journal = {Journal of Plant Protection and Pathology}, volume = {12}, number = {1}, pages = {77-82}, year = {2021}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2021.149523}, abstract = {Effects of different verities of potato tubers as a food Cara, Spunta and Rosetta on food ability, developing, fecundity and life table parameters of Phthorimaea operculellawere studiedunder laboratory conditions.Egg incubation period was longest in time when Ph. operculella reared as larvae on Rosetta variety and spent 5.5 day. The natural mortality data for larvae reared on Cara variety were 23.14, 19.67 and 2.4%, respectively. Pupal duration which reared on the potato varieties Cara, Spunta and Rosetta were 9.22, 10.68and 12.23 days, respectively. Duration of the generation was 40.90 and 35.9 days, on Cara and Spunta varieties, respectively. The obtained results indicate that potato variety Cara demonstrated the highest net reproductive rate (37.7 eggs/female) followed by Spunta variety (22.7 eggs/female) and Rosetta variety (16 eggs/female)}, keywords = {potato varieties,Phthorimaea operculella,biology,fecundity and life table parameters}, url = {https://jppp.journals.ekb.eg/article_149523.html}, eprint = {https://jppp.journals.ekb.eg/article_149523_a2b8d356126e5fa530e854ac64a2b775.pdf} } @article { author = {Ramadan, Marwa and Ibrahim, Omnia and Abdel-Hady, Amira}, title = {Effect of Plantation Date, Plant Cultivars and Plant Density on Insects’ Populations and Yield of Sunflower Crop}, journal = {Journal of Plant Protection and Pathology}, volume = {12}, number = {1}, pages = {83-89}, year = {2021}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2021.149524}, abstract = {The effect of plantation date, plant density, and plant varieties on the population of insects that attack sunflower plants and their predators were examined. Two plantation dates, two sunflower varieties (Giza102 and Sahka53), and two distances between the planting pits were taken in account. Numbers of Aphis gossypii showed significant differences between the two plantation dates of Sakha53 and Giza102 varieties, whereas those of Empoasca lybica only showed significant differences between the two plantation dates of Giza102 variety. Only numbers of the green lacewing, Chrysoperla carnea exhibited significant differences between both dates of cultivation. In respect to March plantation, the distance of 25 cm had significantly higher numbers of Bemisia tabaci, Thrips tabaci, and E. lybica than 15cm for cultivation of Sakha 53 variety, whereas the distance did not affect the insects that harbored Giza 102 variety. In respect to June plantation, the distance of 15cm had significantly higher numbers of E. lybica than 25 cm for cultivation of Sakha 53 variety, whereas 25cm had higher numbers of A. gossypii and Icerya secyllarum than 15cm in Giza102 variety. In March plantation, Sakha53 variety harbored significant numbers of A. gossypii and T. tabaci compared with Giza 102, whereas in June plantation, it harbored significant numbers of E. lybica and I. secyllarum. In general, Sakha 53 variety seems to be a more sensitives sunflower host for insect infestation than Giza102, resulting in lower quantity of sunflower heads yielded by this variety. Chemical and morphological analyses support this finding.}, keywords = {Chrysoperla carnea,Chemical analysis,plant morphology,Sakha 53,Giza 102}, url = {https://jppp.journals.ekb.eg/article_149524.html}, eprint = {https://jppp.journals.ekb.eg/article_149524_234aa934adc2209705870280df167aab.pdf} }