نوع مقاله : مقاله پژوهشی
نویسندگان
1 مرکز تحقیقات کشاورزی و منابع طبیعی استان خوزستان، اهواز، ص. پ: 3341-61335.
2 اداره کل منابع طبیعی استان خوزستان، اهواز
3 مرکز تحقیقات کشاورزی و منابع طبیعی استان خوزستان، اهواز، ص. پ: 3341-61335
4 مؤسسه تحقیقات جنگلها و مراتع کشور، تهران، ص. پ: 116-13185
چکیده
کلیدواژه‌ها
عنوان مقاله [English]
نویسندگان [English]
Esfandiaria obesa is one of the key pests of oak trees and is reported as a native pest for north eastern of Khuzestan Province. Because of high feeding potential on oak leaves, sever damage (100% defoliation on infested trees) was reported to oak forests in this region. In the study some insecticides and bio-pesticides were compared on first and second larval instars of the pest. Tree trunk spaying was applied to obtain effective pesticides. The pesticides used as treatments included: Dimilin® (Diflubenzuron ODC45) with oil carrier, Green muscle® (a products of Metarhizium anisopliae var. acridum), A product of Beauveria bassiana, Malation, Fenitrotion and control treatment (Water). The experiments were designed as complete blocks with 3 (or 4) replicates and were repeated twice for each year in 2003 and 2004. The results showed that Green muscle was more effective compared to the other treatments (with the mean of 98/2-100 percent mortality on larval stages) in different experiments. Dimilin with oil carrier was the second effective product (with 64.65-78.17% mortality). Organophosphoric pesticides were not satisfactorily effective on this grasshopper (Fenitrotion 32.48-40.02%, Malation 3.73-30.97%) Beauveria bassiana product had no considerable mortality on the larval stage.
کلیدواژه‌ها [English]
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