Journal of Entomological Science (1996) 31, 39-51

Frank G. Zalom, Cristina Castañé and Rosa Gabarra (1996)
Effects of chilling of Bemisia argentifolii (Homoptera: Aleyrodidae) infesting cabbage
Journal of Entomological Science 31 (1), 39-51
Abstract: Cold temperatures affected the biology of Bemisia argentifolii Bellows and Perring on cabbage both directly and indirectly. Continuous chilling of 0°C and 4°C significantly increased mortality of adults and eggs. Variable daily chilling of 0°C for 6 h and then greenhouse conditions for the remainder of the day increased adult mortality but did not affect egg mortality for the 10 days of exposure. Prior plant exposure to 0°C resulted in reduced adult B. argentifolii preference and increased adult mortality. Previous 0°C and 4°C plant exposure also had an impact on within plant distribution of adults and eggs. On nonchilled and recently chilled plants, adults and eggs were found on the youngest (highest) leaves. On plants chilled at 0°C and 4°C three and five days before infestation, adults and eggs were found on lower leaves. Lower immature mortality was recorded on the nonchilled plants than on the chilled plants.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Rosa Gabarra, Frank G. Zalom, Cristina Castañe

Research topic(s) for pests/diseases/weeds:
environment - cropping system/rotation
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Bemisia tabaci biotype MEAM1	Cabbage (Brassica oleracea)	Spain (continental)