Field Evaluation of Trichogramma japonicum Ashmead Against Rice Stem Borer Scirpophaga incertulas Walker


  • Punjab Agricultural University, Department of Entomology, Ludhiana, 141 004, India


The rice crop is affected by seven tissue borers in India and most important and widely distributed one is the yellow stem borer Scirpophaga incertulas Walker (Banerjee, 1964; Atwal, 1986). The control of this borer by chemicals is difficult as the larva enters into the plant tissue soon after hatching and the entire larval and pupal period is spent within the stem. Some encouraging results to control this borer with chemicals have been achieved (Banerjee, 1964). But keeping in view the harmful effect of indiscriminate use of insecticides and specially their role in eliminating the beneficial fauna, the emphasis is shifting towards development and implementation of integrated pest management (IPM) approaches in controlling the insect pests. So the efficacy of Trichogramma japonicum Ashmead was studied under field conditions to control this pest.


Trichogramma japonicum, Scirpophaga incertulas, Field Evaluation.

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