Efficacy of Trichogramma chilonis Ishii against sugarcane early shoot borer, Chilo infuscatellus Snellen under sugar factory operational areas of coastal Andhra Pradesh
Multiplication of Trichogramma chilonis Ishii and its host insect, Corcyra cephalonica (Stainton) was undertaken in the IPM laboratory. Regional Agricultural Research Station, Anakapalle since 1999. The activity was intensilied during 2003–04 with an objective to supply ‘Trichocards’ to sugarcane farmers for the control of sugarcane early shoot borer, Chilo infuscatellus Snellen. During the year 2004–05. about 130 million T. chilonis parasitoids were produced in the laboratory and supplied as Trichocards (6,500 Trichocards) to the farmers through Sugar factories. Impact of T. chilonis on early shoot borer in factory operational areas of M/s Sri Sarvaraya Sugars Ltd., Chelluru (AP) was studied. The results indicate that the T. chilonis released plots recorded less incidence (0.16%) of early shoot borer in sugarcane compared to the untreated plots (.3.33%). The T. chilonis released plots recorded a cane yield of 120.3 t/ha and 19.0 per cent juice sucrose.
Chilo infuscatellus, Field Evaluation, Sugar Factory Operational Areas, Trichogramma chilonis.
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