Results 1 to 10 of about 104,904 (314)

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

Efficacy of insecticides against wheat thrips Haplothrips tritici Kurd. in winter wheat crops

open access: yesКарантин і захист рослин, 2023
Goal. To develop an effective system of winter wheat protection against wheat thrips Haplothrips tritici Kurd. Determine the technical effectiveness of insecticides Karate Zeon 050 CS, SC (lambda-cyhalothrin, 50 g/l); Match 050 ES, CE (lufenuron, 50 g/l);
Iu. Klechkovskyi   +2 more
doaj   +1 more source

Peculiarities of toxicodynamics and evaluation of hazard of the new avermectin class insecticides–abamectin and emamectin [PDF]

open access: yesMedičnì Perspektivi, 2014
Based on the expert-analytical study of literature and websites on the results of toxicological experiments of varying duration, a hygienic evaluation of the new class of insecticides – macrocyclic lactones: abamectin and emamectin was done. It was found
Shpak B.I.   +2 more
doaj   +3 more sources

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

Determination of pesticide toxicity parameters using probit-analysis

open access: yesКарантин і захист рослин, 2023
Goal of the research is to consider the main concepts used in the probit-analysis method, the features of its application to determine the toxicity of pesticides, in particular insecticides, acaricides and fungicides. Methods.
O. Shevchuk   +3 more
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

The efficacy of protection by modern insecticides in the industrial cherry plantations against cherry fruit fly pest

open access: yesКарантин і захист рослин, 2023
Goal. To investigate an efficacy of the insecticides Aktelik 500 ЕС, (pyrymyphos-methyl 500 g/l), Calipso 480 SС (thiacloprid, 480 g/l), Proclaim 50 SG (emamectyn benzoat, 50 g/ kg), Movento 100 SC (spirotetramate, 100 g/l), Exirel, СЕ (cyantraniliprole,
Y. Yanovskyi   +3 more
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

Home - About - Disclaimer - Privacy