Inheritance of resistance against Peronospora destructor in onion cv. ‘Regia’

Inheritance of Bulb Color in the Onion.

Propolis chemical composition and honeybee resistance against Varroa destructor.

Propolis is known as honeybee chemical defence against infections and parasites. Its chemical composition is variable and depends on the specificity of the local flora. However, there are no data concerning the relationship between propolis chemical composition and honeybee colony health. We tried to answer this question, studying the chemical composition of propolis of bee colonies from an api...

Acaricide (pyrethroid) resistance in Varroa destructor

Pesticide resistance is the ability of a pest to survive normally lethal rates of a pesticide. The ability to develop resistance to a wide range of pesticides is a widespread phenomenon among the mites, so it was almost inevitable that varroa would become resistant against the commonly used acaricides such as the pyrethroids, taufluvalinate (Apistan) and flumethrin (Bayvarol). Studies found tha...

Field efficacy of acaricides against Varroa destructor

Field trials were conducted in Northeast Spain (Aragón) to evaluate the effectiveness of two acaricides against Varroa destructor. These experiments took into account the season of the year, apiary, colony, and developmental state and strength of the colony. The acaricides used were a synthetic (amitraz, Apivar®) and a natural (formulated from Api Life Var®, thymol oil and thymol alcohol) produ...

کارایی قارچ‌کش فاموکسادون + سیموکسانیل (اکولایزر®(WG %52.5 علیه Peronospora destructor، عامل بیماری سفیدک دروغی پیاز

بیماری سفیدک دروغی پیاز سالانه خسارت اقتصادی فراوانی به محصول پیاز وارد می‌سازد. بمنظور بررسی اثر قارچ‌کش فاموکسادون + سیموکسانیل (اکولایزر(WG %52.5 ® در کنترل بیماری سفیدک دروغی پیاز، آزمایش­هایی در قالب طرح بلوک‌های کامل تصادفی با شش تیمار و سه تکرار در سال 1396 در استان‌های خوزستان و هرمزگان اجرا گردید. تیمارهای آزمایشی شامل اکولایزر با غلظت‌های 2/0، 3/0 و 4/0 کیلوگرم در هکتار، فل...