Side Effects of Pre-Plant Incorporated Herbicides on The Population of Root-Knot Nematode in Cucumber Plants Under Field Conditions الأثار الجانبية لبعض مبيدات الحشائش على نيماتودا تعقد الجذور Meloidogyne javanicaالتي تصيب نباتات الخيار في ظروف الحقل المفتوح

Document Type : Original Article

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Agricultural Zoology and Nematology Department, Faculty of Agriculture, Al-Azhar University, Assiut, Egypt

Abstract

The high economic costs of agricultural production, especially with the high prices of nematicides, have led many researchers to find alternative strategy management to the root-knot nematode.  The current study aimed to evaluate the effect of some commercial pre-plant incorporated herbicides; Benefin, Cobex, Devrinol, Prefar and Treflan as nonspecific treatment as a part of strategy of integrated pest management on the root-knot nematode, Meloidogyne javanica infesting cucumber plants in commercial open fields conditions. All the tested pre-plant incorporated herbicides caused a significant reduction in the root-knot nematode criteria with varying degrees compared with the control. The treatments by Treflan showed the highest effect on the reduction percentage of root-knot nematode (75.8%, 81.8% and 77.4%) in descending three tested rates through the progress of the plants growth, followed by other treatments down to at the least effect associated with Prefar at double rate treatment (40.1%). In conclusion, in the case of the need to weeds control preferred pre-plant herbicides, especially Treflan , Benefin and Devrinol  where it has a side effects on decreasing the population of the root-knot nematode.

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