Application of the combination of Calatropis gigantea L. and Crescentia cujete L. against Scirpophaga innotata and Leptotocorisa acuta Thunb. and predator in paddy plants
PA Palayukkan1, S Sjam1, M Melina1, Sulaeha1, A Rosmana1, VS Dewi1 and Budirman2

Universitas Hasanuddin


Abstract

Abstract. C. gigantea L. and C. cujete L. are plants that contain secondary metabolites that can act as insecticides. The aim of this study was to evaluate the implications of C. gigantea and C. cujete to reduce the population and intensity of attack by stem borer (S. innotata) and stink bug (L. acuta) which are the main pests of paddy plants. This study consisted of 4 treatments consisting of a mixture of C. gigantea and C. cujete extracts, C. gigantea extracts, C. cujete extracts, and control with 5 replications. Extract made by fermentation and the extract was applied at the age of 1 month after planting with a concentration of 5% for 8 times with a frequency of 1 time a week. Observation parameters were population and attack intensity of S. innotata and L. acuta as well as natural enemy populations. The results obtained were that the treatment of all extracts could reduce the population and intensity of attacks compared to the control. Treatment of the mixture of C. gigantea and C. cujete extracts can reduce the population and the intensity of attacks is higher than without the mixture.Predator is not affected by extract applications.

Keywords: C. gigantea L. ,C. cujete, extract, S. innotata and Leptocorisa acuta

Topic: Integrated Pest and Disease Management

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