Factors affecting location of Banks grass mite, Oligonychus pratensis (Acari: Tetranychidae), on corn leaves

The site on which adult female Banks grass mite, Oligonychus pratensis (Banks), settle when placed on corn (Zea mays L.) leaves was significantly influenced by light, leaf surface, and gravity. Mites chose the abaxial side of corn leaves when light was excluded as a factor. With a light source prese...

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Bibliographic Details
Published in:Experimental & applied acarology 1991-09, Vol.12 (1-2), p.27-34
Main Authors: LI, J, MARGOLIES, D. C
Format: Article
Language:English
Subjects:
Acari
Animal and plant ecology
Animal, plant and microbial ecology
Animals
Autoecology
Biological and medical sciences
calor
chaleur
critere d' emplacement
factores de localizacion
feuille
Fundamental and applied biological sciences. Psychology
heat
hojas
Invertebrates
leaves
light
location factors
lumiere
luz
oligonychus pratensis
Protozoa. Invertebrata
Tetranychidae
Zea mays
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Summary:The site on which adult female Banks grass mite, Oligonychus pratensis (Banks), settle when placed on corn (Zea mays L.) leaves was significantly influenced by light, leaf surface, and gravity. Mites chose the abaxial side of corn leaves when light was excluded as a factor. With a light source present, the mites went to and stayed on the leaf surface away from light. In the absence of light and leaf-surface influences, gravity showed significant effect on the choice of the under site of corn leaves by the mites; the effect also existed with light present, and acted in concert with normal light conditions (i.e., light from above). Results suggest that both heat and ultraviolet light may be responsible for the observed light effect.
ISSN:0168-8162
1572-9702
DOI:10.1007/bf01204397