Effectiveness of Predatory Mites, Neoseiulus womersleyi (Schicha) (Acari: Phytoseiidae) Proliferated on Natural Enemy Preservation Plants in Suppressing the Population Density of Kanzawa Spider Mite, Tetranychus kanzawai Kishida (Acari: Tetranychidae) on Tea

Neoseiulus bicaudus (Wainstein) is a natural enemy of spider mite and thrip and also a potential biocontrol agent for Tetranychus turkestani (Tetranychidae). Tyrophagus putrescentiae (Schrank) is an important alternative prey of N. bicaudus for mass rearing. We aimed to determine whether previous long-term feeding history, rearing on alternative prey versus target prey affected the performance of N. bicaudus. Therefore, the prey preference and functional response of predatory mites were compared between three strains: N. bicaudus fed on T. turkestani (TTS); N. bicaudus fed on T. putrescentiae (TPS); and N. bicaudus re-adapted from T. putrescentiae to T. turkestani (TPRS). When fed with the target prey, the preference rate and consumption of the TPS strain were significantly lower than the TTS strain. In addition, after 3-day-re-adaptation, the predatory mites (TPRS) increased their preference rate and consumption to target prey. The results suggested that re-adaptation before release could improve the ability of N. bicaudus to control its target prey.

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Seasonal Fluctuation of Population Density of the Tea Red Spider Mite, Tetranychus kanzawai KISHIDA, in the Tea Plantation

Japanese Journal of Applied Entomology and Zoology ◽

10.1303/jjaez.9.206 ◽

1965 ◽

Vol 9 (3) ◽

pp. 206-210 ◽

Cited By ~ 2

Author(s):

Masaru OSAKABE

Keyword(s):

Population Density ◽

Spider Mite ◽

Seasonal Fluctuation ◽

Tetranychus Kanzawai ◽

Tea Plantation ◽

Red Spider Mite

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Susceptibility of Neoseiulus womersleyi, a Natural Enemy of Tetranychus kanzawai (Acari: Phytoseiidae, Tetranychidae) to Plant Extracts

The Korean Tea Society ◽

10.29225/jkts.2018.24.1.66 ◽

2018 ◽

Vol 24 (1) ◽

pp. 66-71

Author(s):

Yong Seok Huh ◽

Yong In Kuk ◽

Kyu Hwan Hyun ◽

Sang Soo Kim

Keyword(s):

Plant Extracts ◽

Natural Enemy ◽

Tetranychus Kanzawai ◽

Neoseiulus Womersleyi

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Preselecting predatory mites for biological control: the use of an olfactometer

Bulletin of Entomological Research ◽

10.1017/s0007485300013390 ◽

1990 ◽

Vol 80 (2) ◽

pp. 177-181 ◽

Cited By ~ 22

Author(s):

A. Janssen ◽

C.D. Hofker ◽

A.R. Braun ◽

N. Mesa ◽

M.W. Sabelis ◽

...

Keyword(s):

Biological Control ◽

Natural Enemy ◽

Spider Mite ◽

Prey Species ◽

Prey Selection ◽

Predatory Mites ◽

Mononychellus Tanajoa ◽

Cassava Green Mite ◽

Cassava Leaves ◽

Green Mite

AbstractPrevious investigations showed that (1) predatory mites use odours volatilizing from spider-mite infested plants for remote prey selection and (2) the response to the volatiles is correlated to the predator's ability to control populations of the prey species. Based on this correlation, it is hypothesized that preselecting predatory mites with the aid of olfactometer experiments will increase the probability of finding an efficient natural enemy. Y-tube olfactometer experiments with 11 species of phytoseiids showed that only four species were attracted by the odour of cassava leaves infested with cassava green mite Mononychellus tanajoa (Bondar). If the hypothesis mentioned above is valid, the probability of finding an efficient natural enemy within this group of four will be higher than finding one by randomly taking a species from the initial group of 11 species. Since testing of phytoseiids with an olfactometer can be done in a few hours, it is suggested that these tests precede more laborious evaluation methods.

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Population Density of the Red Spider Mite Tetranychus urticae Koch (Acari:Tetranychidae) on Some Vegetable Crops at Fayoum Governorate

Journal of Plant Protection and Pathology ◽

10.21608/jppp.2016.52430 ◽

2016 ◽

Vol 7 (12) ◽

pp. 785-789

Author(s):

M. Mahmoud ◽

Sherin Safar

Keyword(s):

Population Density ◽

Tetranychus Urticae ◽

Spider Mite ◽

Vegetable Crops ◽

Red Spider Mite ◽

Tetranychus Urticae Koch ◽

Fayoum Governorate

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Bioactivity of a New Organotin Compound, Bis(2-Methyl-2-Phenylpropyl)-Trimethyl-Silylmethyl Stannyl Chloride II.Effects on ATPases from Cyhexatin-Susceptible and -Resistant Strains of the Kanzawa Spider Mite, Tetranychus kanzawai KISHIDA(Acarina:Tetranychidae)

Applied Entomology and Zoology ◽

10.1303/aez.27.165 ◽

1992 ◽

Vol 27 (1) ◽

pp. 165-167 ◽

Cited By ~ 3

Author(s):

Minoru MIYASONO ◽

Akira MIZUTANI ◽

Hideyuki IMAZAKI ◽

Katsuaki OHBA ◽

Takeo ISHIGURO ◽

...

Keyword(s):

Spider Mite ◽

Organotin Compound ◽

Tetranychus Kanzawai ◽

Resistant Strains

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Effects of phytoseiid predators on the sex ratio of the spider mite Panonychus ulmi

Canadian Journal of Zoology ◽

10.1139/z91-031 ◽

1991 ◽

Vol 69 (1) ◽

pp. 208-212 ◽

Cited By ~ 3

Author(s):

Dan L. Johnson ◽

Heather C. Proctor

Keyword(s):

Population Density ◽

Sex Ratio ◽

Spider Mite ◽

Total Population ◽

Panonychus Ulmi ◽

Encounter Rate ◽

Male Mortality ◽

Adult Sex Ratio ◽

Biased Sex Ratio ◽

Male Activity

The effect of predator presence on the adult sex ratio of a spider mite (Panonychus ulmi) was examined in a field experiment. Phytoseiid predators (chiefly Typhlodromus occidentalis) were removed from 32 trees harboring P. ulmi populations, and allowed to remain at natural levels on 32 other trees. Both total population density and proportion of males in the prey population were significantly higher in predator-free trees. Mechanisms that could explain the increase in the proportion of males are examined. The most probable is that greater male activity results in a higher encounter rate between predator and prey, and that subsequent higher male mortality when predators are present exaggerates the female-biased sex ratio. The theoretical effects of sex-biased predation on diplo-diploid and haplo-diploid organisms are discussed.

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