Uji Efektifitas Beberapa Insektisida Nabati Terhadap Mortalitas Hama Sitophilus zeamais Motsch. (Coleoptera; Curculionidae) Pada Benih Jagung (Zea mays)
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Fadillah Subhan, "Test Effectiveness of Some Insecticides Against Plant Pests Sitophilus zeamais Motsch Mortality. (Coleoptera: Curculionidae) In the Seed of Corn (Zea mays). "It was under supervised by Yuswani Pangestiningsih and Fatimah Zahara. S. zeamais is a pest of corn in storage that causes substantial yield losses, one of which effective control is the use of botanical insecticides. Testing the effectiveness of some botanical insecticides on mortality of S. zeamais on maize seed plant pests carried in the laboratory of Faculty of Agriculture, University of North Sumatra, Medan. Research using non-factorial complete randomized design with 10 treatments namely control, seed powder distance, soursop seed powder and Morinda citrifolia seed powder with a dose of 5 grams, 10 grams, 15 grams per 400 grams of corn seed with three replications. The results showed that the addition of each dose of pollen grains increased mortality of adult S. zeamais, reducing the number of new adult emerges, reducing the weight losses of maize grain in storage, and no correlation between seed powder is applied with seed germination. The highest mortality percentage in F3 treatment (seed powder distance (15gr/400gr corn) equal to 98.33% and. While the highest seed germination percentage of the treatment F7 (Morinda citrifolia seed powder 5gr/400 g corn) equal to 99.33%.
- SP - Plant Protection