Insect pest and natural enemies of processing tomato in Ilocos Provinces [Philippines]
2018
Cayabyab, B.F. | Gonzales, P.G. | Padilla, J.dG. | Benigno, M.P. | Mendoza, N.D. | Dela Cruz, R.G.
The succession of insect pests in the production of processing tomato in Ilocos Region [Philippines] was studied. Processing tomato is planted after rice in Ilocos Region was studied. Processing tomato is planted after rice in Ilocos region where the only operational processing plant in the Philippines is located (Northern Foods Corporation). The processing tomato is grown in a total area of 800 ha involving about 2,000 contract growers, each with and average of 0.40 ha landholdings. Tomato growing barangays [villages] representing the agro-ecology of the province were selected randomly. Fields of farmers that grow the most popular tomato variety of the region were selected, assigned and utilized from first observation until the end of planting season. In each field, five spots were selected randomly, and in each spot, arthropods were counted of five random plants and recorded. Preliminary results showed high incidence of leafminer Liriomyza sativae Blanchard, whiteflies (Bemisia tabaci (Gennadius), hoppers, tomato fruit worm Helicovera armigera (Hubner), and black winged aphids. The 28-spotted lady beetle Epilachna vigintioctopunctata philippinensis (Dieke), cutworm Spodoptera litura (Fabricius), mealybugs, and dipterans were also observed. Meanwhile, together with the predatory bug Cyrtopeltis tenuis Reuter, coccinelid beetles, parasitoids, and different season will be done to fully characterize the succession of insect pest in processing tomato production.
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