K. S. Brar ¹, S. S. Khosa ², B. S. Sekhon ³

Affiliations
1 Department of Entomology Punjab Agricultural University Ludhiana, 141 004, Punjab, IN
2 Nahar Sugar and Allied Industries, Ltd., Amloh, Fatehgarh Saheb, Punjab, IN
3 Regional Research Station, Bathinda, Punjab, IN

Abstract

In cotton field Trichogramma chilonis could disperse as far as 9 metres to search its host, but the maximum parasitization was observed up to 2 metres. The performance of the Muktsar population was better than all other populations. The laboratory reared population was significantly inferior to all field collected populations.

Keywords

Cotton, Host Searching Capacity, Populations,Trichogramma chilonis.

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S. S. Khosa ¹, K. S. Brar ²

Affiliations
1 Nahar Sugar and Allied Industries Ltd. Amloh, Fatehgarh Saheb Punjab, IN
2 Department of Entomology Punjab Agricultural University Ludhiana 141 004, Punjab, IN

Abstract

The parasitoid, Trichogramma chilonis could be stored in the refrigerator and successfully utilized for 23 days without adversely effecting their emergence and parasitization efficiency. The mean per cent parasitization decreased with the increase in storage period. Among the four populations studied, Muktsar population was most efficient as it showed maximum mean emergence (60.4 %) and mean per cent parasitization (52.1) for 60 days.

Keywords

Emergence, Parasitization, Storage, Trichogramma chilonis.

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