POPULATION FLUCTUATION OF INSECT PESTS AND THEIR NATURAL ENEMIES ON DIFFERENT CHILLI VARIETIES
Jan M. Mari
Pages: 284-291
Published: 1 Jan 2013
Views: 299
Downloads: 13
Abstract: A study on population fluctuation of insect pests and their natural enemies on different chilli varieties were carried out at main chilli Research Station located at Kunri major producing area of Sindh, during the kharif season of year 2012. Insect pests belonged to the following species (thrips, Scirtothrips dorsalis Hood, whitefly, Bemisia tabaci (Genn.), aphids, Aphis gossypii Glover, Mealy bug, Phenacoccus solenopsis (Tinsley), Termite, Coptotermes acinaciformis. Froggatt, mite (Polyphagotarsonemus latus), jassid, Amrasca biguttula biguttula (Ishida), and pod borers like Helicoverpa armigera (Hub.) and Spodoptera litura (Fab.) on chillies) were recorded from both varieties (Longi and Gotki) in chilli crop ecosystem. Thrips, mites and mealy bug were observed major sucking insect pests and were abundant from transplanting to harvesting. In chewing pests S. litura and H. Armigera were also major insect pests in both verities their population was highest on 18th and 19th DAT, respectively. Predators related to the different species were recorded from both verities in chilli ecosystem, they were (Spider, Hippasa agelenoides, 7-spotted, Coccinella semtempunctata (L.) Brumus suturalis (F.) Big Eyed Bug, Geocoris spp and Lace wing, Chrysoperla carnae). In both verities it was observed that mite population was highest as followed by thrips, mealy bug and other insect pests. The data further indicates that comparative mean population of predators were highly significant with each other in longi and non-significant for gotki. It is concluded that in sucking pests, thrips and broad mite and in fruit borer S. litura and H. Armigera were found major pests of chilli from vegetative to reproductive stage and mealy bug was observed sporadically major pest of chilli. From consolidated population of pests of both verities it was determined that abundance of pest growth was till 18th DAT, after that it started decreasing consequently that period of the crop is more sensitive therefore highly attention may be focused on pest scouting in crop.
Keywords: chilli, pests, natural enemies and population
Cite this article: Jan M. Mari. POPULATION FLUCTUATION OF INSECT PESTS AND THEIR NATURAL ENEMIES ON DIFFERENT CHILLI VARIETIES. Journal of International Scientific Publications: Agriculture & Food 1, 284-291 (2013). https://www.scientific-publications.net/en/article/1002961/
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