نوع مقاله : حشره شناسی کشاورزی
نویسندگان
1 موسسه تحقیقات گیاهپزشکی، بخش تحقیقات آفتکش ها
2 عضو هیات علمی، مرکز تحقیقات کشاورزی و منابع طبیعی اصفهان
3 استادیار پژوهش، بخش تحقیقات گیاهپزشکی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان بوشهر، سازمان تحقیقات، آموزش و ترویج کشاورزی، بوشهر، ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Today, in many countries, adjuvant compounds used to improve the efficiency and reduction of pesticides. In this experiment, the effect of Break-Thru® S240 studied on the efficacy of the insecticides imidaclopride (as a systemic insecticide) and pymetrozine (non-systemic) on melon aphid in greenhouse, to reveal the possibility of reducing the dosage of insecticides and sparing solution. Melon aphid sampling was performed one day before and days after spraying, percent mortality was calculated using Henderson-Tilton formula. The results showed that the efficacy of using pymetrozine alone was about 75%. at five days after treatment, while the efficacy of treatment with the recommended dose of pymetrozine combined with adjuvant ws 97%, the treatment of pymethrozin at 30 percent reduction in dosage combined with adjuvant and at 30 percent reduction in spraying solution showed 92% efficacy, the treatment with recommended dosage of pymetrozine at 30 percent reduction in spraying solution alone showed 94% percent efficacy. Similar results were obtained using Imidacloprid combined with Break-Thru® at 5 days after treatment. The efficacies of treatment containing Imidacloprid at recommended dose combined with Break-Thru®, Imidacloprid combined with Break-Thru® at 30 percent solution reduction and the treatment with 30 percent reduction in recommended dose of imidacloprid combined with Break-Thru® with 30 percent solution reduction were 80%, 74% and 69% respectively. It is therefore concluded that using Break-Thru® along with insecticides not only can reduce the insecticide dose but also can reduce the volume of water about 30%.
کلیدواژهها [English]