Comparative toxic and sublethal effects of fluvalinate on two-spotted spider mite and European red mite

1995 ◽  
Vol 19 (10) ◽  
pp. 549-570 ◽  
Author(s):  
J. M. Holland ◽  
R. B. Chapman
Keyword(s):  
Spider Mite ◽  
Sublethal Effects ◽  
European Red Mite ◽  
Two Spotted Spider Mite

scholarly journals CHERRY, CONTROL OF TWO SPOTTED SPIDER MITE AND EUROPEAN RED MITE, 2003

2004 ◽  
Vol 29 (1) ◽  
Author(s):  
John C. Wise ◽  
Larry J. Gut ◽  
Gary Thornton
Keyword(s):  
Spider Mite ◽  
European Red Mite ◽  
Two Spotted Spider Mite

POPULATION STUDIES OF PHYTOPHAGOUS MITES AND PREDATORS ON APPLE IN SOUTHWESTERN QUEBEC

1967 ◽  
Vol 99 (7) ◽  
pp. 771-778 ◽  
Author(s):  
B. Parent
Keyword(s):  
Spider Mite ◽  
Population Studies ◽  
Venturia Inaequalis ◽  
Apple Scab ◽  
Panonychus Ulmi ◽  
Similar Relationship ◽  
Ecological Studies ◽  
Phytophagous Mites ◽  
European Red Mite ◽  
Two Spotted Spider Mite

AbstractEcological studies, undertaken to determine the fluctuations of phytophagous mites and predators in apple orchards, were conducted in 1955, 1956, and 1957 at Rougemont, Que., in two plots sprayed only with fungicides for the control of apple scab, Venturia inaequalis (Cke) Wint., and in a third one sprayed, in addition to fungicides, with all insecticides needed for the control of destructive insects. Phytophagous mites were more numerous in the plot sprayed with insecticides than in plots sprayed only with fungicides, and densities of the mites in the latter plots were inversely proportional to densities of predators. A similar relationship existed in the insecticide plot between the amount of chemicals used and numbers of predators present. The principal mite predators were Typhlodromus rhenanus (Oudms.), most effective against the two-spotted spider mite, Tetranychus urticae Koch, and Mediolata mali (Ewing), most effective against the European red mite, Panonychus ulmi (Koch).

scholarly journals Effects of B-azolemiteacrylic on life-history traits and demographic parameters of two-spotted spider mite, Tetranychus urticae (Acari: Tetranychidae)

2021 ◽  
Author(s):  
Suqin Shang ◽  
Yun Chang ◽  
Wei-Zhen Li ◽  
Wang Chang-Qing ◽  
Nie Peng-Cheng
Keyword(s):  
Tetranychus Urticae ◽  
Spider Mite ◽  
Sublethal Effects ◽  
Oviposition Period ◽  
Population Doubling ◽  
Intrinsic Rate Of Increase ◽  
Population Doubling Time ◽  
Developmental Duration ◽  
Rate Of Increase ◽  
Two Spotted Spider Mite

AbstractThe present study was conducted to evaluate sublethal effects of B-azolemiteacrylic on the two-spotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae). Female adults of T. urticae were exposed to LC10 and LC30 of the acaricide, and the effects on treated females and their offspring were evaluated. The results showed that the fecundity of F0 female adults treated with LC10 and LC30 of B-azolemiteacrylic was reduced by 30.9 and 39.2%, respectively. Longevity and oviposition period of the females were significantly reduced as well. The developmental duration of egg and deutonymph stage of the F1 generation were not significantly different from that of the control. The protonymph stage after LC30 treatment lasted significantly longer, whereas the larva, deutonymph and female stage were significantly shorter than the control. The oviposition period of the F1 generation was significantly shortened, the fecundity of each female decreased significantly, and the ratio of female-to-male was reduced too. Moreover, the average generation period of T. urticae after LC10 and LC30 treatments was shorter than that of the control, and the net production rate (R0), intrinsic rate of increase (rm) and finite rate of increase (λ) were all reduced by 33.3, 7.5 and 1.9% (LC10 treatment) and by 51.3, 14.8 and 3.6% (LC30 treatment), respectively. The population doubling time was prolonged by 7.5 and 14.8% after LC10 and LC30 treatments, respectively, compared with the control. These results indicate that B-azolemiteacrylic may effectively inhibit the development rate of the F0 and F1 populations of T. urticae, which will help design integrated strategies for the comprehensive control of T. urticae and rational use of pesticides in the field.

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