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Field Evaluation of Organophosphorus Insecticides, Chlorpyrifos and Fungal Bio-Pesticides, Beauveria bassiana Towards the Sugar Beet Moth Scrobipalpa ocellatella (Lepidoptera: Gelechiidae) and Studying their Effect on the Population Size of the Associated Arthropod Predators in the Egyptian Sugar Beet Fields. [PDF]

open access: yesJournal of Plant Protection and Pathology, 2022
The sugar beet productions are generally threatened by the sugar beet moth Scrobipalpa ocellatella causing enormous yield loss. The current study was done to evaluate the effectiveness of one of the traditional insecticides (Chlorpyrifos) and the fungal ...
E. Refaei   +2 more
doaj   +1 more source

SOME REACTIONS ON 5-PHENYL-1, 3, 4-OXA(THIA)DIAZOLE-2-THIONES [PDF]

open access: yesDelta Journal of Science, 2005
Reacting 5-phenyl-1, 3, 4-oxa(thia)diazole-2(3H)-thiones 1 with formaldehyde afforded the corresponding 3-hydroxmethyl derivatives 2 which on condensation with DEM and/or EAA gave 3 and 4, respectively.
A.A. EL-BARBARY, H.H. EL-NAGGAR
doaj   +1 more source

The Metarhizium anisopliae Strains Expressing dsRNA of the NlCHSA Enhance Virulence to the Brown Planthopper Nilaparvata lugens

open access: yesAgriculture, 2022
Metarhizium anisopliae is a broad-spectrum entomopathogenic fungus with large-scale applications in pest control; however, its slow-killing action is a limiting factor. To enhance fungal virulence, we constructed transgenic M.
Jun Hu   +4 more
doaj   +1 more source

STUDIES ON SOME 1, 3, 4-OXA(THIA)DIAZOLE DERIVATIVES [PDF]

open access: yesDelta Journal of Science, 2005
Fusion of 2-chloro-5- phenyl- 1,3,4-oxa(thia)diazoles (1a,b) with anthrax-nilic acid gave the cyclized compounds 3a,b which on thiation afforded 2-phenyl-1-oxa(thia)-3,3a,9-triaza-cyclopenta[b]naphthalene-4-thiones (4a,b).
A.A. EL-BARBARY, H.H. EL-NAGGAR
doaj   +1 more source

Antimicrobial Activities of some Egyptian Bee Honeys against Staphylococcus aureus And Pseudomonas aeruginosa [PDF]

open access: yesJournal of Plant Protection and Pathology, 2019
Bee honeys are natural product from the honeybee colonies which has a great nutritional and medicinal effects. In this research, different types of Egyptian bee honey were collected from 3 governorates to study their antibacterial activities related to ...
T. Abd El-Wahab, Asmaa Abd Alla
doaj   +1 more source

Disruption of a C69-Family Cysteine Dipeptidase Gene Enhances Heat Shock and UV-B Tolerances in Metarhizium acridum

open access: yesFrontiers in Microbiology, 2020
In fungi, peptidases play a crucial role in adaptability. At present, the roles of peptidases in ultraviolet (UV) and thermal tolerance are still unclear. In this study, a C69-family cysteine dipeptidase of the entomopathogenic fungus Metarhizium acridum,
Juan Li   +11 more
doaj   +1 more source

Pathogenicity induced by indigenous Beauveria bassiana isolate in different life stages of the cotton leafworm, Spodoptera littoralis (Boisduval) (Lepidoptera: Noctuidae) under laboratory conditions

open access: yesEgyptian Journal of Biological Pest Control, 2021
Background The invincible effects of the entomopathogenic fungi (EPF) under appropriate circumstances compensate for the flaws of chemical insecticides in the control programs. Beauveria bassiana is one of the most elaborated EPF of pest control all over
Yasmin Adel Fergani   +1 more
doaj   +1 more source

Study of the toxic effect of insecticides on the honey bee: methodological recommendations

open access: yesКарантин і захист рослин, 2023
Goal. Improving the methodology for assessing the toxicity and potential safety of insecticides for the honey bee. Methods of determining the toxicity of insecticides for bees — laboratory and field.
O. Vlasova, M. Sekun, M. Zatserklyana
doaj   +1 more source

Technical efficiency of insecticides against Helicoverpa armigera Hübner caterpillars in corn crops

open access: yesКарантин і захист рослин, 2023
Goal. To establish the effectiveness of the use of modern insecticides in corn crops against the cotton bollworm. Methods. Determination of the technical efficiency of insecticides was carried out in field conditions.
Yu. Liaska
doaj   +1 more source

Cyanide as an Insecticide [PDF]

open access: yesJournal of Economic Entomology, 1908
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Woglum, R. S. (Russell Sage)   +1 more
openaire   +1 more source

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