Influence of Trap Crops on Management of Insect Pests by Exploitation of Heteropteran Predatory Bugs in Cotton
Influence of Trap Crops on Management of Insect Pests by Exploitation of Heteropteran Predatory Bugs in Cotton
Saima Siddiqui1*, Ghulm Hussain Abro1, Tajwar Sultana Syed1 and Abdul Sattar Buriro2
ABSTRACT
The influence of mix cropping on the population of sucking insect pests and their heteropteran predatory bugs was determined in cotton crop. Millet, maize and sunflower were grown as trap crops in cotton (cv CRIS-342) croping the experimental area of Entomology section, Agriculture Research Institute, Tandojam during 2011 and 2012. There was significant effect of trap crops on population reduction of jassid, thrips and white flyin cotton intercropped with millet, maize and sunflower. The minimum population of jassid (0.89), whitefly (0.36) and thrips (6.20) was recorded on cotton intercropped with maize. The maximum population of predator, Orius sp was recorded on cotton intercropped with maize as (2.29) and (2.36), Zanchius sp (0.86) and (0.93) and Geocoris ochropterus (Fieber 1844) (0.57) and (0.66) predators per plant during 2011 and 2012, respectively. The studies indicated that on average maize intercropped with cotton as trap crop resulted in the lowest density of jassid, thrips and whitefly and the higher population of predators, G. ochropterus, Orius spp. and Zanchius sp. per plant.
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