منابع مشابه
Silicas for control of the poultry red mite Dermanyssus gallinae
Control of the poultry red mite Dermanyssus gallinae is a challenge for organic as well as conventional egg producers. In organic agriculture, control should be attempted by mechanically acting substances (e.g. oils or diatomaceous earth), before acaricides are applied. Diatomaceous earth (DE) without acaricides was at least as effective as DE supplemented with pyrethrum or essential oils and a...
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The objective of this study was to determine the potential for several new CM products to flare ERM populations, especially those in the neonicotinoid class, by comparing them to other CM insecticides from the organophosphate, carbamate and pyrethroid classes. Treatment timing was designed to simulate application for CM control. The test materials were applied to 16-yr-old 'Red Delicious' apple...
متن کاملThe Economic Threshold with a Stochastic Pest Population an Application to the European Red Mite
This paper applies option value theory to determine the timing and value of pesticides in controlling crop damage. Entomologists and economists have both sought to determine '~ction" or 'economic" thresholds which would trigger the application of a pesticide, or an alternative pest control policy. These concepts are reviewed, and the differences arising in each discipline are noted. Two mathema...
متن کاملEffect of commercial apple rootstocks on some growth and biochemical characteristics of apple leaf cvs. Golden Delicious and Red Delicious
In order to study three vegetative rootstocks M9, M7 and MM106 on some growth and biochemical Characteristics of Apple cvs. "Golden delicious" and "Red Delicious", an experiment in factorial design based on randomized complete blocks with four replications in orchard of Mashhad agricultural research center was performed in 2021. Some characteristics: including trunk diameter, current shoot grow...
متن کاملRole of neonicotinyl insecticides in Washington apple integrated pest management. Part II. Nontarget effects on integrated mite control
The effect of neonicotinyl insecticides on integrated mite control in Washington apple was examined from 0 In a series of 20 field trials (54 treatments) designed primarily to look at efficacy against the codling moth, Cydia pomonella, nearly half of the treatments using four or more applications of acetamiprid had peak mite densities exceeding the economic threshold of 5 mites per leaf. Overal...
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ژورنال
عنوان ژورنال: Arthropod Management Tests
سال: 1994
ISSN: 2155-9856
DOI: 10.1093/amt/19.1.36