Population fluctuation of the white stemborer Scirphopaga innotata in South Sulawesi (Indonesia)
1998
Baco, D. | Said, M.Y. (Balai Penelitian Tanaman Jagung dan Serealia Lainnya, Maros (Indonesia))
Английский. The research on the population fluctuation of the white stemborer Scirphopaga innotata was conducted at Sidrap and Bone, South Sulawesi, during 1994/95. The observation was made weekly on the number of egg masses, dead heart and white head, egg parasitism and predators start one week after planting until harvesting. The moth was monitored using sex pheromone. The research was conducted at farmers field without insecticide application. The results showed that the moth population, dead heart and white head were higher in wet season than in dry season. There were two kinds of predators i.e., Lycosa pseudoannulata and Argiope sp. observed in wet season and dry season. The egg parasitism was high in Bone location during dry season
Показать больше [+] Меньше [-]неизвестный. Perubahan populasi penggerek batang putih dan faktor penyebabnya diteliti di Sidrap dan Bone, Sulawesi Selatan pada MT 1994/95. Penelitian dilakukan di lahan petani tanpa perlakuan insektisida. Pengamatan jumlah telur, persentase serangan penggerek batang dan padat populasi musuh alami (predator) dilakukan 1 minggu setelah tanam (MST) sampai menjelang panen dengan interval 1 minggu. Untuk monitoring imago penggerek batang dilakukan dengan menggunakan sex pheromon. Hasil penelitian menunjukkan bahwa serangan dan populasi ngengat penggerek batang pada musim hujan lebih tinggi dibanding musim kemarau. Dari hasil penelitian juga diketahui bahwa ada dua predator dominan yaitu Lycosa pseudoannulata dan Argiope sp. Peranan parasit telur cukup tinggi di Bone pada musim kemarau
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