Occurrence of Hippodamia convergens (Guir) on different hosts
2009
Kakar, M.I.
The present experiment was conducted to determine the occurrence of Hippodamia Convergens (guir) on different hosts. The results have indicated that the predator, H. convergens along with sucking insect pests, i.e. aphids, whitefly and thrips were present on brinjal and mustard crops. On brinjal the maximum population of aphids (40.40 / plant), whitefly (12.0/plant) and thrips (11.0 / plant) was recorded during 1st week of December. At the same period the maximum population of H. convergens (8.0/plant) was also recorded. The result indicates the relationship of predator population with sucking insect pest on brinjal crop, similarly on mustard crop. The maximum population per plant aphids (60.0), whitefly (40.0) and thrips (33.50) were observed during third week of February 2008. The predator H. convergens population was also maximum (10.50 per plant) during third week of February.
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