NERACA KEHIDUPAN Arthroschista hilaralis PADA TANAMAN JABON (Anthocephalus cadamba Miq)

Abstract

Arthroschista hilaralis is a defoliator pest which attacks Anthocephalus cadamba with a high level ofdamage. This study was aimedat reviewing the life table ofA. hilaralis Anthocephalus cadamba. Thirty eggs ofA. hilaralis were on observed until imago andegg laying stage. The parameters ofpopulation growth are gross reproductive rate (GRR), net reproductive rate (Ro), mean generation time (T), intrinsic growth rate (r). They were calculatedby using data of all the individuals hatched during the first year (lx) and the number ofoffspring hatched to individuals ofeach age (mx). The results showed that GRR of A. hilaralis A. cadamba is 141 individual per generation, Ro revealed 70 on individual per female per generation, T is 23.5 days, and the innate capacity for increase (r) 0.18 individual per female perday.