2024-03-28T15:05:20Z
https://jppp.journals.ekb.eg/?_action=export&rf=summon&issue=27571
Journal of Plant Protection and Pathology
2090-3677
2090-3677
2021
12
9
Effect of Gamma Irradiation on Viability, Pathogenicity, Reproductivity of Heterorhabditis bacteriophora and H. indica and detection of DNA Damage
ENTSAR
TAHA
R.
Shoaib
Noha
Abo-Shady
Entomopathogenic nematodes (EPNs) are a promising alternative method for insect pest control. The idea of the work is to investigate the effect of gamma irradiation on EPNs pathogenicity under laboratory conditions aiming to enhance their lethal effect against insect pests. Heterorhabditis bacteriophora (Hb) as well as H. indica (Hi) were irradiated directly in nematode suspension and indirectly within the insect cadavers by gamma irradiation dosages of 0, 100, 250, 500, 750 and 1000 Gy.The mortality percentage of nematodes were recorded, the extracted nematodes from the irradiated insect hosts were used to investigate their pathogenicity and reproductivity against Galleria mellonella larvae. The damage of DNA was analyzed using the comet assay and the LC50 of the two nematode species was recorded. The data demonstrated that, the low dosage (100 Gy) enhanced the pathogenicity of EPNs and didn't affect the initial populations (Pi), the final population of emerged IJs (Pf) and the rate of reproduction (Rr%). Moreover, H. bacteriophora was more tolerant to gamma irradiation than H. indica which recorded more DNA damage %, DNA in tail, tail length, tail moment and olive tail moment in the all different irradiated dosages. In conclusion, low dosages of gamma irradiation can be used to enhance the pathogenicity and reproductivity of entomopathogenic nematodes in order to use as a biocontrol agent.
Gamma Irradiation
Heterorhabditis bacteriophora
H. indica
Galleria mellonella
DNA damage
Comet assay
2021
09
01
563
568
https://jppp.journals.ekb.eg/article_194290_d1ce359fdde538945380e04f3e534d2a.pdf
Journal of Plant Protection and Pathology
2090-3677
2090-3677
2021
12
9
Role of Parasitoids, Conventional Insecticides and Ecdysone Agonists in Regulating Population of Cassida vittata Vill in Egyptian Sugar Beet Fields
Fatma
Hegazy
M.
El-Sheikh
This study was carried out at the experimental farm of Sakha Agricultural Station, Kafr El-Sheikh Governorate for three successive seasons (2017/2018, 2018/2019 and 2019/2020). The study aimed to monitor seasonal abundance of Cassida vittata Vill. (Coleoptera: Chrysomelidae) and its hymenopterous parasitoids, Monorthochaeetaa nigra Blood (Trichogrammatidae) and Dinarmus laticeps (Pteromalidae). Further, role of ecdysone agonists compounds in reducing C. vittata numbers and their adverse effect on these parasitoids in comparison with the conventional insecticides. Results proved that population density of C. vittata and its parasitoids gradually increased towards the end of the season resulting in highly positive significant correlations between this insect and its parasitoids. General egg-parasitoid of M. nigra to host ratiowas 1:1.88 and 1:1.96, while it was 1:1.61 and 1:1.44 for larval-pupal parasitoid D. laticeps during 2018/2019 and 2017/2018 seasons, respectively. Lastly, ecdysone agonists were efficient against C. vittata, whereas it were almost safer to parasitoids than conventional insecticides. Thus, C. vittata parasitoids and ecdysone agonists may be used for integrated pest management programs for this serious insect.
Cassida vittata
Monorthochaeetaa nigra
Dinarmus laticeps
Ecdysone agonists
Beta vulgaris
2021
09
01
569
573
https://jppp.journals.ekb.eg/article_193801_4deeedafea875b3faecd81a74886ee9b.pdf
Journal of Plant Protection and Pathology
2090-3677
2090-3677
2021
12
9
Biological Characteristics of two Coccinellid Predators when Reared on Aphis gossypii Glover and an Artificial Diet under Laboratory Condition
A.
EL-Heneidy
abd el-badiaa
ghanim
Hala
El-Serafy
Nadia
Mohamed
E.
Elbanna
Laboratory studies under constant temperature of 27±2oC and 65±5 RH were carried out in the insectary of Economic Entomology Department , Faculty of Agriculture, Mansoura University to develop an artificial diet for rearing two coccinellid predators species Coccinella 9-punctata L and Chellomens propinqua nilotica (Mulsant). The results showed that the average duration of the predatory species, C. 9-punctata L. larval stage lasted 17.22±1.75 days, when fed on the cotton aphid, Aphis gossypii Glover, and the average total larval consumption was 734.2±10.65. The pupal stage lasted 6.75±0.85days. The predator,s female consumed a total average of 2888.79±67.54 and the number of deposited eggs per female averaged 1117.0 eggs. The predator male consumed a total average of 1765.23±29.5. Obtained data of Ch. propinqua nilotica larvae lasted 13.73±1.12days when fed on A. gossypii. Average total laval consumption reached 468.39±21.6. The predator,s female consumed a total average of 2022.45±55.6 aphid individuals . The number of deposited eggs per predator female averaged 913. ±11.5 eggs. The predator male consumed a total average of 1136.02±38.4. Obtained results of the two coccinellid predatory species when reared on an artificial diet, showed the average durations of larval stage lasted 22.15±2.4 and 18.38 ±1.96 days for C. 9-punctata and propinqua nilotica, respectively . Respective fecundity of the females of the two species was 360.62±14.8 and 325.8±11.5 eggs respectively. The results assured that the two predatory species reared successfully on this artificial diet.
Coccinella 9-punctata L
Chilomenus propinqua nilotica (Mulsant), Aphis gossypii Glover Artificial diets
Biology aspects
2021
09
01
575
578
https://jppp.journals.ekb.eg/article_203139_1b932e6f2850aab646645b4eb06b6c9f.pdf
Journal of Plant Protection and Pathology
2090-3677
2090-3677
2021
12
9
Ecological Studies on the Main Piercing-Sucking Insect Pests that Infesting Sweet Pea Plants in Dakahlia Governorate, Egypt
Marwa
Shalaby
abd el-badiaa
ghanim
Hala
El-Serafy
Samar
Abdel-Salam
Field experiments were conducted to estimate population density of six Hemiptereous insect species thatt attacking sweet pea plants during two winter seasons of 2018 and 2019 at Dekernce region, Dakhlia Governorate. As well, to determine the impact of temperature and relative humidity on their populations. The results showed that, Myzus persica (Zeller) had two peaks during winter plantation that was recorded during 26th of November of both seasons. Data revealed that Aphis carccivora (Koch) and Acrythosiphn pisum (Koch) had only one peak for each during each season of plantation. Counts showed that Empoasca descipiens had one peak in the winter plantation during 17th of March. Three peaks during winter seasons plantations were recorded for Empoasca decedens. On the other hand, Nezara viridula had two population peaks in each of the two sweet pea seasons. The correlation between population density of the recorded insects and each of temperature or relative humidity had various degrees of significance that differed from positive to negative and from non-significant to highly significant.
sweet pea
Ecological studies
piercing-sucking and insect pests
2021
09
01
579
583
https://jppp.journals.ekb.eg/article_203143_30b8dc8d7f6f5c1affd23ff820abba65.pdf
Journal of Plant Protection and Pathology
2090-3677
2090-3677
2021
12
9
Efficacy of Some Pesticides and Plant Extracts on Two Spotted Spider Mite Tetranychus urticae, (Koch) on Cotton Plant
S.
Hamed
H.
Abd El-Rahman
Hanaa
Nassem
Malaka
Anis
The present study, lab and field work was conducted to evaluation of toxic-effect and bio-activity of some newly conventional-pesticides (challenger, oberon, lambda, lant, neem oil and eucalyptus oil) to control of females-adult and stages of eggs for two spotted spider mite T. urticae. Addition to, evaluation of side-effects of sub-lethal dose of tested-chemicals on some biology aspects of spider mite T. urticae, and evaluates of compounds toxicity tested pest invested cotton-plants in fields.In laboratory andfield the results showed that, challenger gave high toxicity to eggs-stages and adult-females of tested pest. The result indicated that, eucalyptus oil and neem oil were the least compound. Challenger and oberon are the most effective compounds tested on egg deposition and the same effective challenger and oberon were the most effective compounds against the motile stages, while lant was of moderate effect of T. urticae. Eucalyptus oil and neem-oil gave lower effects to motile-stages of the tested pest. Challenger and oberon exhibited the best results in this respect. All compounds successes in population-density reduction of motile-stages of spider mite, T. urticae in lab and field-experiments during the two seasons 2019-2020.
Plant-extracts
Two-spotted
spider mite
Tetranychus urticae
cotton plants
2021
09
01
585
591
https://jppp.journals.ekb.eg/article_207635_4cfa789e8146fc7ae1d4482bae242597.pdf
Journal of Plant Protection and Pathology
2090-3677
2090-3677
2021
12
9
Induced Resistance to Potato Virus Y Potyvirus by Plant Extracts and Salicylic Acid
Jehan
Abass
A.
Fayed
The current study was performed to evaluate the potential of two plant extracts (from Nigella sativa L. seeds and Clerodendrum inerme L. leaves) and salicylic acid to induce systemic resistance (ISR) against Potato virus Y (PVY) in potato plants. Ultrastructure investigations using the transmission electron microscope (TEM) exhibited Pinwheels and Ga-Golgi apparatus in the infected plants. Flexuous filaments particles (with a model length of 730×13 nm) were observed in the infected sap using TEM investigation. RT-PCR technique revealed a band- sized at 610 bp in the infected samples with PVY. The infection with PVY was confirmed morphologically and histologically. The most effective treatment for induction of ISR was Nigella sativa L., since the highest reduction of virus infection and the lowest inhibition rate (34.7 and 61.7, respectively), were recorded in plants treated with this plant extract and salicylic acid. Peroxidase (POD) activities were 59.7and 37.7 and polyphenol oxidase (PPO) activities were 23.7and 21.0 after 1- and 2-weeks of Nigella sativa L. treatment, respectively.On the other hand, salicylic acid had the lowest effect on decreasing PVY infection rate and virus inhibition, resulting in of ISR in potato plants. Taken together, the extracts of Nigella sativa and Clerodendrum inerme as well as salicylic acid could be used to control PVY infection. A further study is needed to evaluate these materials under field conditions.
Potatoes
PVY
ISR
peroxidase
histology
TEM
2021
09
01
593
598
https://jppp.journals.ekb.eg/article_203147_bbb8a5cc27f6c25df5a0195f1efac488.pdf
Journal of Plant Protection and Pathology
2090-3677
2090-3677
2021
12
9
Impact of Gamma Irradiation on Tomato, and Pepper Growth Parameters, Phytochemical, Nematode Infectivity and detection of DNA Damage by Comet Assay
Entsar
Taha
R.
Shoaib
Root -knot nematode is a challenge of most vegetable production and there is a critical need to an alternative, effective, safe technique for control. The main objective of this study was to detect the effect of five doses of gamma irradiation on Meloidogyne incognita (Mi) infectivity, host growth, and DNA damage. Three-week-old- seedlings of: tomato, (Solanum lycopersicum), and pepper (Capsicum annum), were irradiated with five doses i.e. 100, 250,500,750, and 1000 Gy and transplanted in 20cm diameter pots in the screen-house. Halves of the replicates/ dose were inoculated with 1000 2IJs, while others were kept as controls. DNA damage was measured by comet assay which performed on the host leaves. Data demonstrated that, all nematode parameters were decreased beginning from the lowest does (100Gy), while, the plant growth parameters were enhanced significantly at 100 and 250Gy even when infected with nematodes and so did the chlorophyll a,b, carotenoids, and total phenols, antioxidative enzymes; Polyphenol oxidase (PPO), peroxidase (POX), Catalase (CAT) and Superoxide dismutase (SOD). Likewise, quantity of DNA damage was represented as mean of % DNA in tail, tail moment, tail length, and olive tail moment which were more pronounced than the control. As a conclusion, gamma irradiation at 100 and 250 Gy could protect host plants of nematode infection and increase the plant growth. Therefore, this approach introduces a promising technique in the integrated pest programs without any suppressive effects on the growth of plant hosts.
Gamma Irradiation
Antioxidative enzymes
root- knot nematodes
DNA damage
Comet assay
2021
09
01
599
608
https://jppp.journals.ekb.eg/article_194792_a6ec285e53084aa4a6ad04a4be6f02e3.pdf
Journal of Plant Protection and Pathology
2090-3677
2090-3677
2021
12
9
Species Distribution Modeling of Potential Invasion of Dwarf Honey Bee, Apis florea Fab., to Africa and Europe after Occurrence in Egypt in View of Climatic Changes
H.
Abou-Shaara
H.
Mahfouz
A.
Owayss
Recently, the dwarf honey bee (DB), Apis florea Fab, has invaded certain eastern parts of Egypt. DB is expected to invade other national localities and extends to international regions. The current study shades light on the ability of DB to spread through Egypt towards certain regions in Africa and southern Europe. Maxent, as a species distribution modeling software analysis, was applied combining with environmental variables of current and future circumstances, i.e. during 2050 up to 2070. The obtained maps predict the limited spread of DB via southern Europe, under current conditions, while supports the potential spread of DB across northern and western parts of Egypt within next few years. The futuristic maps emphasized the possible spread of DB towards southern Europe especially Spain and Portugal, while the wide invasion of DH in other European countries is not expected. Limited ability of DB to spread all over Africa is predictable, while, northern African regions are preferred. Possible consequences of the spread of DB into other regions are discussed.
Apis florea
modeling
global distribution
Climate Change
2021
09
01
609
614
https://jppp.journals.ekb.eg/article_206735_ffddc6ff802a6ad4c5348be2bb8daeab.pdf
Journal of Plant Protection and Pathology
2090-3677
2090-3677
2021
12
9
Biological, Histological and Pathological Studies of Tomato Wilt Disease Caused by Fusarium oxysporum f. sp. Lycopersici
Abeer
Makhlouf
M.
Ammar
M.
Selim
Tomato wilt disease caused by Fusarium oxysporum f.sp. lycopersici is one of the most destructive diseases, and causes significant yield losses in Egypt. In the present study, the antifungal activities of some essential oils (clove, garlic and thyme) at various concentrations (10, 15 and 20 %) in addition to different Trichoderma isolates(Trichoderma harzianum, Trichoderma hamatum and Trichoderma viride) and three different concentrations of urea (0.5 , 1 and 1.5%) was investigated against the pathogen (FOL).. The results revealed that the all tested essential oils reduced the growth and spore population of FOL significantly. The highest pathogen reduction was recorded with clove oil followed by garlic oil either under laboratory or green-house conditions. Contrary, application of urea fertilization at concentrations of 1% and 1.5% increased significantly both growth mass and sporulation capability of FOL comparing to the control. The highest percentage (94.2%) of FOL growth inhibition under in vitro condition was recorded with Trichoderma harzianum, followed by Trichoderma viride (90.8%). Similar results were recorded under greenhouse conditions. Furthermore, the results showed that the all tested oils, Trichoderma isolates and urea fertilization improved the growth criteria of tomato plants comparing to the control plants. On the other hand, the histological investigation proved that Trichoderma harzianum and clove oil were the best treatments where there weren’t histological changes in the external cortex, epidermal cells, endodermis and vascular vessel.
Fusarium wilt Trichoderma harzianum. Trichoderma viride Clove oil. Histopathology
2021
09
01
615
626
https://jppp.journals.ekb.eg/article_198993_bb2b33e589f2cef041f9dded7e14a78f.pdf
Journal of Plant Protection and Pathology
2090-3677
2090-3677
2021
12
9
Analytical Method Determination of Penconazole in some Emulsifiable Concentrate (EC) Formulations Using Gas Chromatography
N.
Khalil
A method for simultaneous determination of penconazole content in some Emulsifiable Concentrate (EC) formulations has been described. Determination and quantification of penconazole were performed by gas chromatography equipped with a flame ionization detector (GC/FID) using an external standard of high and known purity. Validation parameters based on the Australian Pesticides and Veterinary Medicines Authority (APVMA) guidelines and ISO/IEC 17025 definition including method specificity, linearity, precision, accuracy, limit of detection (LOD) and limit of quantitation (LOQ) were evaluated. Under the optimum conditions, the linearity was found to be high with correlation coefficient values (R2> 0.999) for the target penconazole formulations. The results showed precise and accurate method. The RSD% was in the range of 1.40% for formulation of 200 g (a.i.)/L and 1.43 % for formulation 100 g (a.i.)/L respectively. Selectivity showed no interference from any other possible adjuvants or components. It can be concluded that the GC-FID described method is reliable, suitable and successfully applied to the estimation of the target penconazole determination. GC- MS and IR spectroscopy were used as a type of quality control to ascertain the presence of penconazole.
GC - FID
Penconazole
EC formulations
validation
GC - MS
APVMA
2021
09
01
627
630
https://jppp.journals.ekb.eg/article_206738_f92feed24adb2f90d87854c3839c0f93.pdf
Journal of Plant Protection and Pathology
2090-3677
2090-3677
2021
12
9
Management of Macrophomina phaseolina on Tomato using some Plant Extracts, Plant Oils, and some Biocontrol Agents
Eman
Selim
G.
Amer
Abeer
Makhlouf
This study aims to control Charcoal root rot disease of tomato caused by Macrophomina phaseolina by using biocontrol agents and ecofriendly compounds. The results indicated that all tested plant water extracts reduced the linear growth and sporulation of Macrophomina Phaseolina both under laboratory and greenhouse conditions. Complete growth inhibition (100%) was observed in Macrophomina Phaseolina when cactus or clove extracts were applied at all tested concentrations (5, 10 and 15%). The best effective plant extract in reducing sclerotia population was nigella followed by clove. They resulted 40.0 and 34.2% reduction of sclerotia population respectively, compared to control. Also, the application of essential oils to soil previously infested with the pathogen at different tested concentrations (5, 10, and 15) significantly reduced disease incidence and sclerotia population of Macrophomina Phaseolina. The best results were obtained when mint oil was applied; followed by cloveoil. Trichoderma asperellum and Trichoderma koningii were the best tested Trichoderma spp. isolates in reducing the incidence and severity of disease Macrophomina phaseolina. All the above-mentioned treatments reduced the charcoal rot incidence and improved the growth of tomato plants; significantly under green house and artificial soil infestation conditions.
Macrophomina Phaseolina . Trichoderma asperellum. T.koningii . nigella. clove . mint oil
2021
09
01
631
638
https://jppp.journals.ekb.eg/article_198995_fd41779c6092a694be6c7fc15d4adb3a.pdf
Journal of Plant Protection and Pathology
2090-3677
2090-3677
2021
12
9
Effect of Pest Control Applications on Sorghum-Panicle Pests and Associated Predators at Sohag Governorate, Egypt
H.
El-Gepaly
Ebtesam
El-Khayat
N.
Omran
A.
Desoky
Sorghum panicles offer a very rich microenvironment for many insect pest species and their natural enemies. A field experiment was conducted on sorghum (Sorghum bicolor L.) variety “Shandaweel 6” in Shandaweel Research Station (SRS), Sohag Governorate, Egypt during the 2019 growing season. Lepidopteran and hemipteran pests were the most dominant species-infested sorghum panicles during the half bloom stage of the panicles. Three microlepidopteran pests, the noctuid, Eublemma gayneri (Roth.); the pyralid, Cryptoblabes gnidiella Millière, and the cosmopterigid, Pyroderces simplex Walsingham, were recorded as major pest species infesting sorghum panicles in Sohag Governorate. Four treatments; B. bassiana, Bt, Thuja extract and Lambada-cybalothrin pesticide were applied against sorghum panicle pests in general, and particularly against the mention microlepidopteran pests. Pesticide was recorded the highest reduction rates in the target pests (E. gayneri, C. gnidiella and P. simplex) with 68.48, 78.46, 80.41 and 81.55% respectively, these effects were significantly differed with the rest of the compounds except thuja extract against C. gnidiella, where the differences between the chemical pesticide and B. bassiana faded. also, in the non-target pests, pesticide was recorded the highest reduction rate of Aphid, Thrips and Hemipteran pests with 67.98, 75.95 and 57.11% respectively, and significant difference with the rest of the compounds was noted except B. bassiana in the case of Aphid and Hemipteran pests, where the differences between the chemical pesticide and B. bassiana faded.
Sorghum
Panicle
Predators
Biopesticide
B. bassiana Bt
Thuja Extract
2021
09
01
639
645
https://jppp.journals.ekb.eg/article_208008_617808d4453ad75a441d0b7edd2030a9.pdf
Journal of Plant Protection and Pathology
2090-3677
2090-3677
2021
12
9
Rodent Damage and their Control for Attacking Seeds of Rhamnus cathartica (Buckthorn) Plants in Rural Areas, Upper Egypt
T.
Abo-Elmaged
S.
Baghdadi
A.
Desoky
Buckthorn (Rhamnus cathartica) is one of the delicious winter fruits, and was mentioned in the Qur’an as "Sidr". Buckthorn has multiple health benefits, as it is rich in fibers, vitamins and elements.This study was conducted in some rural areas in Al-Monshah district, Sohag Governorate. A mechanical survey and control of the rodent species that attacked the seeds of buckthorn trees in rural areas was studied.The results showed one type of rodent climbing on buckthorn trees which is the gray-bellied rat, Rattus rattus alexandrinus. The results showed a decrease in the number of rickety seeds after performing the mechanical control (destroying rodent nests from buckthorn trees). The mean year of general post-control reduction during the study period was 96.55%.
: Buckthorn
Rhamnus cathartica
Rattus rattus alexandrinus rural areas
trees
2021
09
01
647
650
https://jppp.journals.ekb.eg/article_203154_c1c05de6045e36b69dc39aeff26c0e1b.pdf
Journal of Plant Protection and Pathology
2090-3677
2090-3677
2021
12
9
Effectiveness Vitamin C on different Characteristics of Silkworm, Bombyx mori L.
Rania.
Gad
Dina
Fathy
In order to investigate effectiveness vitamin C on different characteristics of silkworm, Bombyx mori L. Silkworm larvae through 4th to 5th instar were treated with dietary supplements of ascorbic acid 7000 (VC1) and 10000 (VC2) ppm . Leaves enriched with vitamin C were fed four times per day for the larvae. Results obtained that VC1 of vitamin C is more effective than VC2 and control. It had a significant increase in biological criteria s like larval weight and larval period while economical criteria s like cocoon weight, cocoon shell weight and pupal weight. They weren’t shown any difference between VC1 and VC2 compared to control. Ascorbic acid (VC2) significantly increased the number of Prohaemocytes (Pr) 15, Granulocytes (Gr) 35.3, Plasmatocytes (Pl) 27.6 and Oenocytoides (Oe) 8 cells, respectively. This study was indicated that vitamin C has been effective on increasing the growth rate of larvae, weight of the cocoon and increasing the immunity of larvae. So, It is recommended to using it in the breeding of silkworms and production of silk commercially.
Silkworm
vitamin c
Haemocytes
Biological and economical criteria s
2021
09
01
651
654
https://jppp.journals.ekb.eg/article_203157_aacc2930afc45a1a17426566c72a9f9f.pdf
Journal of Plant Protection and Pathology
2090-3677
2090-3677
2021
12
9
Nematicidal Activity of some Nanoemulsions of Monoterpenes on Tomato Root-Knot Nematodes (Meloidogyne javanica)
Mona
Abdel Rasoul
D.
El-Habashy
The present study was initiated to explore at the nematicidal activity of some nanoemulsions of monoterpenes, i.e. (R)-carvone, cinnamaldehyde, citral, geraniol and pulegone against tomato knot-root nematode M. javanica, in both laboratory and under greenhouse conditions The results show that the pure and NE-monoterpenes tested considerably and severely decreased egg hatching at doses ranging from 25 to 1000 μg/ml. NE-Cinnamaldehyde, significantly, showed higher J2 mortality (90.67 %) and egg-hatching inhibition (8.67) than pure cinnamaldehyde. The most successful therapy for reducing root galls and the number of egg masses was NE- Cinnamaldehyde, which showed 90.3% and 92.8% reduction, followed by NE- Pulegone 84.2% reduction, respectively. The population of J2 in soil was considerably decreased after using the tested nanoemulsion monoterpenes. NE- Cinnamaldehyde was the most effective treatment, suppressing the final population of M. javanica by 81.8%. Beyond oxamyl, NE-Cinnamaldehyde was the most efficient treatment for increasing the weights and lengths of both fresh shoots and roots in infected tomato plants, consecutively. Meanwhile, pulegone measured the intermediate values of fresh root and shoot weights as well as for lengths. Normal and nanoemulsion cinnamaldehyde ranked the first as it increased polyphenoloxidase (PPO) activity, compared to the other treatments followed by nanoemulsion and normal pulegone. The highest enzyme activity was noticed 7 and 15 days after treatment. Peroxidase activity (POD) also increased by nanoterpene treatments in a trend similar to that of the PPO. Consequently, these effective monoterpene nanoemulsions could be effective potentially and environmentally safe to control tomato knot-root nematode.
Nanoemulsion(NE)
monoterepenes
knot-root nematode
Tomato
induced resistance
2021
09
01
655
661
https://jppp.journals.ekb.eg/article_203160_003e13427e9bf99cca9f753d9d05f16c.pdf
Journal of Plant Protection and Pathology
2090-3677
2090-3677
2021
12
9
Effect of Intercropping Between Garlic and Faba Bean on Yield and Infestation by Some Piercing-Sucking Insect Pests
Moshira
El-Shamy
Heba
Abd El-Aty
Faba bean is an important food crop in Egypt, with seeds of 22 % protein. In addition, it is considered a land reclaiming crop, as it enriches the soil with some nitrogen fertilizer. The current study was conducted at the experimental farm of Sakha Agricultural Research station to manage some piercing-sucking insects with unconventional methods. Garlic was intercropped with faba bean to find the repellent effect of garlic, as a volatile crop, against the abovementioned insects. The solid faba bean gave the highest values of faba bean yield, number of branches, pods and seeds per plant, as well as number of seeds / pod, 100-seed weight and protein content. On the other hand, these values, except plant height, were higher in case of intercropping faba bean with Balady garlic compared to Sids-40 garlic. Concerning garlic yield attributes, Balady garlic intercropped with faba bean produced higher values of bulb diameter and bulb weight / plant, as well as number of cloves per bulb and clove weight compared to Sids-40 garlic. In 2018 / 19 season, the population density of Aphis craccivora was reduced by 55.66 and 32.47 % due to intercropping between faba bean and Balady garlic or Sids-40 garlic, respectively. Empoasca lybica population was reduced by 54.67 and 35.72%, and that of Bemisia tabaci was 59.92 and 35.26 %. Similar results were obtained in 2019/20 season. The current results show that intercropping between faba bean and garlic enhanced the total net crop income, and helped in managing these insects.
Intercropping
piercing-sucking insect pests
Faba bean
Garlic
Net income
2021
09
01
663
670
https://jppp.journals.ekb.eg/article_203163_4e61545c327e6b703d7c5b1f7cd6985e.pdf