Developmental time of Blattisocius tarsalis (Acari: Ascidae) at different temperatures.
The developmental time of the predatory mite Blattisocius tarsalis (Berlese) (Acari: Ascidae) was investigated at temperatures of 15, 21 and 25 degrees C and 75% r.h. Eggs 1-3 days old of Ephestia kuehniella Zeller (Lep.: Pyralidae), killed by freezing, were used as food. Mean developmental times were found to be 22.4, 8.5 and 7.0 days, respectively. Within the investigated thermal limits the developmental rate showed a linear relationship with temperature and the corresponding thermal threshold for development was calculated to 10.2 degrees C.
Nielsen
P S
PS
Danish Pest Infestation Laboratory, Lyngby. P.S.Nielsen@SSL.DK
D000818:Animals; D005260:Female; D008297:Male; D008925:Mites / Q000254:growth & development*; D013696:Temperature