scholarly journals Information use by the predatory mite Phytoseiulus persimilis (Acari: Phytoseiidae), a specialised natural enemy of herbivorous spider mites

2005 ◽  
Vol 40 (1) ◽  
pp. 1-12 ◽  
Author(s):  
Jetske G. de Boer ◽  
Marcel Dicke
Keyword(s):  
Natural Enemy ◽  
Information Use ◽  
Phytoseiulus Persimilis ◽  
Spider Mites ◽  
Predatory Mite

Attraction of Phytoseiulus persimilis (Acari: Phytoseiidae) towards volatiles from various Tetranychus urticae-infested plant species

2002 ◽  
Vol 92 (6) ◽  
pp. 539-546 ◽  
Author(s):  
C.E.M. van den Boom ◽  
T.A. van Beek ◽  
M. Dicke
Keyword(s):  
Jasmonic Acid ◽  
Plant Species ◽  
Spider Mite ◽  
Phytoseiulus Persimilis ◽  
Predatory Mites ◽  
Spider Mites ◽  
Predatory Mite ◽  
Indirect Defence ◽  
Volatile Blend ◽  
Direct Defence

AbstractPlants infested with the spider mite Tetranychus urticae Koch, may indirectly defend themselves by releasing volatiles that attract the predatory mite Phytoseiulus persimilis Athias-Henriot. Several plants from different plant families that varied in the level of spider mite acceptance were tested in an olfactometer. The predatory mites were significantly attracted to the spider mite-infested leaves of all test plant species. No differences in attractiveness of the infested plant leaves were found for predatory mites reared on spider mites on the different test plants or on lima bean. Thus, experience with the spider mite-induced plant volatiles did not affect the predatory mites. Jasmonic acid was applied to ginkgo leaves to induce a mimic of a spider mite-induced volatile blend, because the spider mites did not survive when incubated on ginkgo. The volatile blend induced in ginkgo by jasmonic acid was slightly attractive to predatory mites. Plants with a high degree of direct defence were thought to invest less in indirect defence than plants with a low degree of direct defence. However, plants that had a strong direct defence such as ginkgo and sweet pepper, did emit induced volatiles that attracted the predatory mite. This indicates that a combination of direct and indirect defence is to some extent compatible in plant species.

scholarly journals Mint companion plants attract the predatory mite Phytoseiulus persimilis

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Kazuki Togashi ◽  
Mifumi Goto ◽  
Hojun Rim ◽  
Sayaka Hattori ◽  
Rika Ozawa ◽  
...  
Keyword(s):  
Phytoseiulus Persimilis ◽  
Predatory Mite ◽  
Companion Plants

scholarly journals Maternal effect determines drought resistance of eggs in the predatory mite Phytoseiulus persimilis

Oecologia ◽  
2019 ◽  
Vol 192 (1) ◽  
pp. 29-41 ◽  
Author(s):  
Sophie Le Hesran ◽  
Thomas Groot ◽  
Markus Knapp ◽  
Tibor Bukovinszky ◽  
Jovano Erris Nugroho ◽  
...  
Keyword(s):  
Phenotypic Plasticity ◽  
Maternal Effect ◽  
Environmental Changes ◽  
Biological Control Agent ◽  
Phytoseiulus Persimilis ◽  
Predatory Mite ◽  
Control Agent ◽  
Hatching Rate ◽  
Dry Conditions ◽  
Low Humidity

AbstractThe ability of an organism to adapt to short-term environmental changes within its lifetime is of fundamental importance. This adaptation may occur through phenotypic plasticity. Insects and mites, in particular, are sensitive to changes in temperature and humidity, especially during the juvenile stages. We studied the role of phenotypic plasticity in the adaptation of eggs to different relative humidity conditions, in the predatory mite Phytoseiulus persimilis, used worldwide as a biological control agent of the spider mite Tetranychus urticae. The biocontrol efficacy of P. persimilis decreases under dry conditions, partly because P. persimilis eggs are sensitive to drought. We exposed P. persimilis adult females from two different strains to constant and variable humidity regimes and evaluated the hatching rate of their eggs in dry conditions, as well as the survival and oviposition rates of these females. Whereas the eggs laid by P. persimilis females exposed to constant high humidity did not survive in dry conditions, females exposed to constant low humidity started laying drought-resistant eggs after 24 h of exposure. Survival and oviposition rates of the females were affected by humidity: females laid fewer eggs under constant low humidity and had a shorter lifespan under constant high and constant low humidity. The humidity regimes tested had similar effects across the two P. persimilis strains. Our results demonstrate that transgenerational phenotypic plasticity, called maternal effect, allows P. persimilis females to prepare their offspring for dry conditions.

The Predatory Mite Phytoseiulus persimilis Adjusts Patch-leaving to Own and Progeny Prey Needs

2006 ◽  
Vol 39 (1) ◽  
pp. 1-11 ◽  
Author(s):  
V. Vanas ◽  
M. Enigl ◽  
A. Walzer ◽  
P. Schausberger
Keyword(s):  
Phytoseiulus Persimilis ◽  
Predatory Mite
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