Pheromone Studies of the Two spotted Spider Mite. 1. Evidence of a Sex Pheromone12

Cone, Wyatt W.; McDonough, L. M.; Maitlen, J. C.; Burdajewicz, S.

doi:10.1093/jee/64.2.355

Cited by 46 publications

(13 citation statements)

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“…This identification was possible due to its mating behavior-the male holds the female deutonymph by the posterior part of the idiossoma, using its first pair of legs, in a protective position known as ''guard'' (Cone et al 1971). We introduced adult males from the stock rearings in the experimental units and selected those in which a pair was established.…”

Section: Reproduction and Adult Longevity Of N Idaeusmentioning

confidence: 99%

Neoseiulus idaeus (Acari: Phytoseiidae) as a potential biocontrol agent of the two-spotted spider mite, Tetranychus urticae (Acari: Tetranychidae) in papaya: performance on different prey stage – host plant combinations

Collier¹,

Albuquerque

Lima

et al. 2007

Exp Appl Acarol

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Development, reproduction, and life table parameters of the phytoseiid mite Neoseiulus idaeus Denmark & Muma preying on various stages of Tetranychus urticae Koch fed on papaya or snap bean plant were studied at 25 +/- 2 degrees C, 77 +/- 2% RH and 12L:12D photoperiod. Most characteristics of the predator, including the duration of the immature stages, preoviposition and oviposition periods, and female longevity did not differ significantly among the different food combinations. During the adult stage, N. idaeus females survived up to 14 days. The net reproductive rate, the mean generation time, and the intrinsic rate of natural increase of N. idaeus were very similar on all T. urticae stage--host plant combinations, ranging from 5.15 to 6.61 females, 10.15 to 12.62 days, and 0.150 to 0.168, respectively. These results indicate that T. urticae reared either on papaya or snap bean is an adequate prey for the development and reproduction of N. idaeus. Moreover, the current findings demonstrate that the host plant of T. urticae did not affect the predator. The implications of these results for the success of N. idaeus as a biological control agent of T. urticae in papaya orchards are discussed.

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Section: Reproduction and Adult Longevity Of N Idaeusmentioning

confidence: 99%

Neoseiulus idaeus (Acari: Phytoseiidae) as a potential biocontrol agent of the two-spotted spider mite, Tetranychus urticae (Acari: Tetranychidae) in papaya: performance on different prey stage – host plant combinations

Collier¹,

Albuquerque

Lima

et al. 2007

Exp Appl Acarol

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show abstract

“…In my experiments, the movement of the males towards the females was not random, but directed, and was not influenced by sex ratio and density levels. The sensory basis of this movement in 0. gossypii is, however, riot known, but it is possible that sex pheromones help males detect female deutonymphs [ 14,15]. Webbing laid by female deutonymphs may also help mate searching [16].…”

Section: Please Scroll Down For Articlementioning

confidence: 99%

The mating speed inOligonychus gossypii(Zacher) (Tetranychidae: Acarina)

Banerjee¹

1979

International Journal of Invertebrate Reproduction

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“…Therefore, the ability to detect any direct and/or indirect cues produced by mates (e.g., Cone et al 1971;DeBano 1996;Anderson and Morse 2001;Oku et al 2005) should enjoy a selective advantage. In particular, males wait at sites where they are assured a high probability of encountering females, such as topological features (e.g., Alcock 1983a, b).…”

Section: Introductionmentioning

confidence: 99%

“…Life stages of tetranychid mites consist of egg, larva, quiescent larva, protonymph, quiescent protonymph, deutonymph, quiescent deutonymph and adult. Adult males locate quiescent deutonymph females, the quiescent stage immediately before adult emergence, using sex pheromones (Cone et al 1971) and the webs (Penman and Cone 1972) produced by the females, although such cues seem effective only within a close range. Therefore, if the sites where females enter the quiescent deutonymph stage (hereafter ''quiescent sites'') are somehow predictable, males should preferentially search for such sites.…”

Section: Introductionmentioning

confidence: 99%

Effects of predation risk on mating behavior of the Kanzawa spider mite

Oku

Yano

2007

J Ethol

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In the Kanzawa spider mite, Tetranychus kanzawai, adult males locate pre-reproductive quiescent females and engage in precopulatory mate guarding. We found that re-reproductive quiescent females preferred to be near veins, rather than other leaf parts, and moreover, adult males spent more time along the vein than on other parts. Consequently, T. kanzawai males found more quiescent females along veins than those on other parts. However, the predatory mite Neoseiulus womersleyi also found more quiescent T. kanzawai females along veins than those on other parts. Moreover, N. womersleyi found more guarding males than solitary males of T. kanzawai. Thus, we experimentally examined the effects of predation risk on the mating behavior of T. kanzawai. The presence of N. womersleyi reduced T. kanzawai female preference for vein vicinity as a quiescent site. Although the predation risk of guarding T. kanzawai males was lower than that of solitary males after detection by predators, the presence of N. womersleyi also reduced the proportion of guarding T. kanzawai males. These results suggest that the possible benefits of preferring vein vicinity as quiescent sites by T. kanzawai females is outweighed by predation risk in the presence of predators, and that the risk of detection by predators would be more important for T. kanzawai males than the risk of being preyed upon.

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Pheromone Studies of the Two spotted Spider Mite. 1. Evidence of a Sex Pheromone12

Cited by 46 publications

References 0 publications

Neoseiulus idaeus (Acari: Phytoseiidae) as a potential biocontrol agent of the two-spotted spider mite, Tetranychus urticae (Acari: Tetranychidae) in papaya: performance on different prey stage – host plant combinations

Neoseiulus idaeus (Acari: Phytoseiidae) as a potential biocontrol agent of the two-spotted spider mite, Tetranychus urticae (Acari: Tetranychidae) in papaya: performance on different prey stage – host plant combinations

The mating speed inOligonychus gossypii(Zacher) (Tetranychidae: Acarina)

Effects of predation risk on mating behavior of the Kanzawa spider mite

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