Bollworm: 1 Peanut Foliage Consumption and Larval Development 2
- 1 June 1979
- journal article
- research article
- Published by Oxford University Press (OUP) in Environmental Entomology
- Vol. 8 (3) , 465-467
- https://doi.org/10.1093/ee/8.3.465
Abstract
Peanut foliage consumption by bollworm larvae, Heliothis zea (Boddie), increased from 176.1 to 195.1 cm 2 and larval developmental time decreased from 35.3 to 30.2 days at 26° and 30°C, respectively. Pupal weights also increased with temperature. Larval instars ranged from 5 to 9 with no apparent change due to temperature. The penultimate and ultimate larval instars collectively consumed 73–97% of the total foliage consumed. The ultimate instar had the highest consumption rates ranging from 9.20–30.57 cm 2 /day at 26°C to 13.52–20.22 cm 2 /day at 30°C. Larval mortality was 73.4% at 26°C to 66.3% at 30°C. Mortality rates for specific larval age intervals increased for the latter instars.This publication has 0 references indexed in Scilit: