Leaf hairs influence searching efficiency and predation rate of the predatory mite Phytoseiulus persimilis (Acari: Phytoseiidae)

O.E. Krips, P.W. Kleijn, P.E.L. Willems, G.J.Z. Gols, M. Dicke

Research output: Contribution to journalArticleAcademicpeer-review

94 Citations (Scopus)

Abstract

The effect of leaf hairs on searching efficiency of adult female Phytoseiulus persimilis was investigated. For this purpose we used the ornamental crop Gerbera jamesonii and determined the predator's searching efficiency on three cultivars that differ largely in the density of leaf hairs on the undersurface of the leaves. Walking speed of the mites was highest on the cultivar with the lowest leaf hair density. Walking activity, defined as the percentage of time spent walking, was not dependent on leaf hair density of the cultivars. At both prey densities tested, time until first predation increased with leaf hair density. The predation rate of adult female R persimilis is affected by trichome density, particularly when prey density is low. At prey densities of 1.3 and 2.5 Tetranychus urticae eggs cm-2, predation rate was inversely related to leaf hair density. At a prey density of 8.0 eggs cm-2 no significant effect of leaf hair density on predation rate was found. These negative effects on searching efficiency and predation success at low prey density of R persimilis suggest that biological control of T. urticae on gerbera may be hampered by leaf hairs.
Original languageEnglish
Pages (from-to)119-131
JournalExperimental and Applied Acarology
Volume23
DOIs
Publication statusPublished - 1999

Fingerprint

Phytoseiulus persimilis
predatory mites
Phytoseiidae
hair
mite
trichomes
Acari
predation
walking
cultivar
Tetranychus urticae
rate
cultivars
Gerbera jamesonii
egg
Gerbera
trichome
ornamental plants
biological control
mites

Cite this

@article{0efcc14ac3664073801bc9cbb6fefe58,
title = "Leaf hairs influence searching efficiency and predation rate of the predatory mite Phytoseiulus persimilis (Acari: Phytoseiidae)",
abstract = "The effect of leaf hairs on searching efficiency of adult female Phytoseiulus persimilis was investigated. For this purpose we used the ornamental crop Gerbera jamesonii and determined the predator's searching efficiency on three cultivars that differ largely in the density of leaf hairs on the undersurface of the leaves. Walking speed of the mites was highest on the cultivar with the lowest leaf hair density. Walking activity, defined as the percentage of time spent walking, was not dependent on leaf hair density of the cultivars. At both prey densities tested, time until first predation increased with leaf hair density. The predation rate of adult female R persimilis is affected by trichome density, particularly when prey density is low. At prey densities of 1.3 and 2.5 Tetranychus urticae eggs cm-2, predation rate was inversely related to leaf hair density. At a prey density of 8.0 eggs cm-2 no significant effect of leaf hair density on predation rate was found. These negative effects on searching efficiency and predation success at low prey density of R persimilis suggest that biological control of T. urticae on gerbera may be hampered by leaf hairs.",
author = "O.E. Krips and P.W. Kleijn and P.E.L. Willems and G.J.Z. Gols and M. Dicke",
year = "1999",
doi = "10.1023/A:1006098410165",
language = "English",
volume = "23",
pages = "119--131",
journal = "Experimental and Applied Acarology",
issn = "0168-8162",
publisher = "Springer Verlag",

}

Leaf hairs influence searching efficiency and predation rate of the predatory mite Phytoseiulus persimilis (Acari: Phytoseiidae). / Krips, O.E.; Kleijn, P.W.; Willems, P.E.L.; Gols, G.J.Z.; Dicke, M.

In: Experimental and Applied Acarology, Vol. 23, 1999, p. 119-131.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Leaf hairs influence searching efficiency and predation rate of the predatory mite Phytoseiulus persimilis (Acari: Phytoseiidae)

AU - Krips, O.E.

AU - Kleijn, P.W.

AU - Willems, P.E.L.

AU - Gols, G.J.Z.

AU - Dicke, M.

PY - 1999

Y1 - 1999

N2 - The effect of leaf hairs on searching efficiency of adult female Phytoseiulus persimilis was investigated. For this purpose we used the ornamental crop Gerbera jamesonii and determined the predator's searching efficiency on three cultivars that differ largely in the density of leaf hairs on the undersurface of the leaves. Walking speed of the mites was highest on the cultivar with the lowest leaf hair density. Walking activity, defined as the percentage of time spent walking, was not dependent on leaf hair density of the cultivars. At both prey densities tested, time until first predation increased with leaf hair density. The predation rate of adult female R persimilis is affected by trichome density, particularly when prey density is low. At prey densities of 1.3 and 2.5 Tetranychus urticae eggs cm-2, predation rate was inversely related to leaf hair density. At a prey density of 8.0 eggs cm-2 no significant effect of leaf hair density on predation rate was found. These negative effects on searching efficiency and predation success at low prey density of R persimilis suggest that biological control of T. urticae on gerbera may be hampered by leaf hairs.

AB - The effect of leaf hairs on searching efficiency of adult female Phytoseiulus persimilis was investigated. For this purpose we used the ornamental crop Gerbera jamesonii and determined the predator's searching efficiency on three cultivars that differ largely in the density of leaf hairs on the undersurface of the leaves. Walking speed of the mites was highest on the cultivar with the lowest leaf hair density. Walking activity, defined as the percentage of time spent walking, was not dependent on leaf hair density of the cultivars. At both prey densities tested, time until first predation increased with leaf hair density. The predation rate of adult female R persimilis is affected by trichome density, particularly when prey density is low. At prey densities of 1.3 and 2.5 Tetranychus urticae eggs cm-2, predation rate was inversely related to leaf hair density. At a prey density of 8.0 eggs cm-2 no significant effect of leaf hair density on predation rate was found. These negative effects on searching efficiency and predation success at low prey density of R persimilis suggest that biological control of T. urticae on gerbera may be hampered by leaf hairs.

U2 - 10.1023/A:1006098410165

DO - 10.1023/A:1006098410165

M3 - Article

VL - 23

SP - 119

EP - 131

JO - Experimental and Applied Acarology

JF - Experimental and Applied Acarology

SN - 0168-8162

ER -