Feeding rates of the rice leaffolder, Cnaphalocrocis medinalis (Lepidoptera: Pyralidae), on different plant stages.

摘要: Feeding rates of the first three larval instars Cnophalocrocis medilUllis on rice plants were significantly lower than those fourth and fifth ins lars. The lars consumed less 10% larva's total consumption. also decreased with increasing plant age. model, C t e li' 1.0, from hatching to day, I, well described data =0 for all stages examined. Changes in feeding rate constant, P. proportional stages. eXI}ressed days after sO\"'ing (DAS) relationship was by a linear f3 = 0.213 0.0008 DAS.