Screening of plant protection products against cotton aphid Aphis gossypii Glov. оf growing greenhouse cucumbers | Скрининг на продукти за растителна защита срещу памуковата листна въшка Aphis gossypii Glov. при отглеждане на оранжерийни краставици
2014
Yankova, V,, Maritsa Vegetable Crops Research Institute, Plovdiv (Bulgaria) | Markova, D., Maritsa Vegetable Crops Research Institute, Plovdiv (Bulgaria) | Velkov, N., Maritsa Vegetable Crops Research Institute, Plovdiv (Bulgaria)
Cotton aphid Aphis gossypii Glov. Homoptera:Aphididae is one of the most common pests on cucumbers grown in greenhouses. The susceptibility of population in the greenhouse complex to the insecticides used is different in the particular regions. Rotary application of a broad spectrum of plant protection products is necessary in order to be optimized their use and to avoid the risk of resistance. The aim of this study was to make a screening of plant protection products for determination of their effectiveness against cotton aphid in greenhouse cucumbers. Studies have been conducted in the period 2009-2013 under unheated glasshouses in the Maritsa Vegetable Crops Research Institute, Plovdiv with cucumber variety Kiara. Trials were conducted under natural attack of A. gossypii. Among the included 10 plant protection products was established that very good effectiveness against cotton aphid demonstrate the following ones: Confidor Energy OD 0.06%; Biscaya 240 OD 0.06%; Mospilan 20 SP 0.0125%; Confidor 20 SL 0.05%; Actara 25 WG 0.007% and Nurelle Dursban 50 ml/da.
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