HOST RANGE OF CHILLI THRIPS, Scirtothrips dorsalis Hood IN KARNATAKA
Scirtothrips dorsalis Hood, (Thysanoprera: Tliripizlae) a serious pest of chillies, is also a major pest of grapes in Karnataka. It has been found to infest about 20 hosts, including important crops like tea, cotton, castor and mango (Ananthakrishnan, 1971). The chilli thrips, S. dorsalis, mostly a leaf thrips, has recently become a major pest of rose ﬂowers in Karnataka (Onkarappa and Mallik, 1998). As alternate host plants help in build-up of the thrips an investigation was undertaken with a view to know the host range of S. dorsalis. Surveys were undertaken at fortnightly intervals to record different hosts of S. dorsalis in and around Bangalore during 1999~2000. The places surveyed included the villages, Thirunahalli, Nandi, Muddenahalli near Chikkaballapurg Botanical and Medicinal garden, GKVK and Lalbagh (Horticulture Garden), Bangalore.
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