Development time and percent survival of the silverleaf whitefly, Bemisia argentifolii Bellows & Perring (formerly referred to as B strain of sweetpotato whitefly), were determined at five constant temperatures ranging from 20 to 35°C on two cultivars of cotton, cantaloupe, and pepper (Capsicum sp.). Fecundity was recorded at 30°C during the first 10 d of adulthood. Developmental, survival, and fecundity rates were not significantly different between cultivars within crops of either cotton or cantaloupe, but varied between crops. Development time from egg to adult at 20–32°C ranged from 14.6 ± 0.8 (mean ± SE) to 36.0 ± 1.0 d on cantaloupe and from 16.3 ± 0.7 to 37.9 ± 2.1 d on cotton, respectively. Whiteflies did not develop at 35°C or on pepper at any temperature. Minimum developmental thresholds and degree-days requirements from egg to adult were 11.1°C and 312.5 DD on cotton and 13.2°C and 250.0 DD on cantaloupe, respectively. Immature survival was high (76.5 ± 11.5–100%) on cantaloupe, intermediate (37.3 ± 13.3–64.4 ± 10.2%) on cotton, and very low (0–8.3 ± 8.3%) on pepper from 20–32°C. Fecundity ranged from 153.3 ± 10.8–158.3 ± 9.3 eggs per female on cantaloupe, from 117.0 ± 6.0–117.5 ± 22.1 eggs per female on cotton, and from 2.1 ± 0.7–40.5 ± 5.8 eggs per female on pepper, at 30°C.
How to translate text using browser tools
1 February 2001
Temperature and Host Plant Effects on Development, Survival, and Fecundity of Bemisia argentifolii (Homoptera: Aleyrodidae)
Urbano Nava-Camberos,
David G. Riley,
Marvin K. Harris
ACCESS THE FULL ARTICLE
It is not available for individual sale.
This article is only available to subscribers.
It is not available for individual sale.
It is not available for individual sale.
Bemisia tabaci
cantaloupe
cotton
development
fecundity
survival