A comprehensive picture of foraging strategies of Neoseiulus cucumeris and Amblyseius swirskii on western flower thrips

2021 ◽  
Author(s):  
Sajjad Dalir ◽  
Hamidreza Hajiqanbar ◽  
Yaghoub Fathipour ◽  
Mostafa Khanamani
Keyword(s):  
Western Flower Thrips ◽  
Foraging Strategies ◽  
Amblyseius Swirskii ◽  
Neoseiulus Cucumeris ◽  
Flower Thrips ◽  
Comprehensive Picture

scholarly journals Intra-guild vs extra-guild prey: effect on predator fitness and preference of Amblyseius swirskii (Athias-Henriot) and Neoseiulus cucumeris (Oudemans) (Acari: Phytoseiidae)

2009 ◽  
Vol 100 (2) ◽  
pp. 167-173 ◽  
Author(s):  
R. Buitenhuis ◽  
L. Shipp ◽  
C. Scott-Dupree
Keyword(s):  
Frankliniella Occidentalis ◽  
Western Flower Thrips ◽  
Predation Rate ◽  
Predatory Mites ◽  
Amblyseius Swirskii ◽  
Neoseiulus Cucumeris ◽  
Predator Species ◽  
Flower Thrips ◽  
Fast Development ◽  
High Predation Rate

AbstractThe relationships between the predatory mites, Amblyseius swirskii (Athias-Henriot) and Neoseiulus cucumeris (Oudemans) (Acari: Phytoseiidae), and their prey, western flower thrips (Frankliniella occidentalis Pergande) (Thysanoptera: Thripidae), were investigated to determine the effects of predation on intra-guild or extra-guild prey and predator preference. Life history characteristics of both predatory mites were measured when fed eggs and larvae of the other predator species and compared to data obtained when the predators were fed thrips larvae. In addition, choice tests were conducted to determine if the predators had a preference for different prey or if they were indiscriminate predators. Amblyseius swirskii appears to be an important intra-guild predator of N. cucumeris juveniles because of a high predation rate and a preference for N. cucumeris juveniles over thrips. Neoseiulus cucumeris is also an intra-guild predator of A. swirskii juveniles; however, it has a lower predation rate than A. swirskii. Contrary to intra-guild predation theory, intra-guild prey was an equally good or better food source than thrips (extra-guild prey) for both predators, based on high oviposition rates and fast development times. The results of this study indicate a high potential for negative interactions between A. swirskii and N. cucumeris when used together in biological control of thrips.

Effect of Pesticide Mixtures on the Survival of the Predatory Mite Neoseiulus cucumeris (Acarina: Phytoseiidae)

2007 ◽  
Vol 42 (3) ◽  
pp. 311-319 ◽  
Author(s):  
Heather E. Lash ◽  
Daniel F. Warnock ◽  
Raymond A. Cloyd
Keyword(s):  
Fungal Pathogens ◽  
Frankliniella Occidentalis ◽  
Western Flower Thrips ◽  
Predatory Mite ◽  
Water Control ◽  
Neoseiulus Cucumeris ◽  
Thiophanate Methyl ◽  
Pesticide Mixtures ◽  
Control Programs ◽  
Flower Thrips

This study was conducted to determine the effect of 2 insecticides/miticides, spinosad and abamectin, and 2 fungicides, thiophanate-methyl and fenhexamid, when applied alone or mixed in all combinations, on the survival of Neoseiulus cucumeris (Oudemans). Neoseiulus cucumeris is a predatory mite utilized in greenhouses for managing western flower thrips, Frankliniella occidentalis Pergande. The deutonymph and adult stages of N. cucumeris were directly exposed to the pesticide treatments or a water control. Overall, the deutonymphs were more susceptible to the pesticide treatments, based on percent survival 24 h after treatment, than the adults. Five of the 7 pesticide mixtures containing spinosad and 4 of the 7 mixtures containing abamectin resulted in deutonymph mortality values between 50 and 69%. Thiophanate-methyl alone and in combination with either spinosad or abamectin resulted in >35% mortality of the deutonymphs. Based on the results of this study, spinosad and abamectin, when used alone or in mixture with thiophanate-methyl will reduce N. cucumeris populations by killing the deutonymphs. This information is important to greenhouse managers who want to use pesticide mixtures to manage arthropod pests and fungal pathogens without disrupting biological control programs for western flower thrips.

Evaluation of efficacy of Neoseiulus cucumeris for control of western flower thrips in spring bedding crops

2006 ◽  
Vol 36 (2) ◽  
pp. 203-215 ◽  
Author(s):  
R.G. Van Driesche ◽  
S. Lyon ◽  
E.J. Stanek ◽  
Bo Xu ◽  
C. Nunn
Keyword(s):  
Western Flower Thrips ◽  
Neoseiulus Cucumeris ◽  
Flower Thrips

scholarly journals Provision of astigmatid mites as supplementary food increases the density of the predatory mite Amblyseius swirskii in greenhouse crops, but does not support the omnivorous pest, western flower thrips

BioControl ◽  
2021 ◽  
Author(s):  
Fatemeh Pirayeshfar ◽  
Seyed Ali Safavi ◽  
Hamid Reza Sarraf Moayeri ◽  
Gerben J. Messelink
Keyword(s):  
Food Source ◽  
Frankliniella Occidentalis ◽  
Western Flower Thrips ◽  
Predatory Mite ◽  
Amblyseius Swirskii ◽  
Supplemental Food ◽  
Greenhouse Crops ◽  
Dog Food ◽  
Flower Thrips ◽  
Astigmatid Mites

AbstractAstigmatid mites can be used as prey for mass rearing of phytoseiid predators, but also as a supplemental food source to support predator populations in crops. Here we evaluated the potential of six species of astigmatid mites (living or frozen) as alternative food for the predatory mite Amblyseius swirskii Athias-Henriot in greenhouse crops. All prey mites tested were suitable for predator oviposition. In general, oviposition was greater when prey mites were reared on dog food with yeast than when they were reared on wheat bran with yeast. Amongst prey items provided as frozen diet, larvae of Thyreophagus entomophagus (Laboulbene), Acarus siro L. and Lepidoglyphus destructor (Schrank) that had been reared on dog food with yeast, resulted in the highest oviposition rates of A. swirskii. T. entomophagus larvae as frozen diet resulted in the shortest preimaginal developmental time of A. swirskii. On chrysanthemum plants, we found that the greatest increase in predator density occurred when living mites of T. entomophagous were used as a food source. This increase was greater than when predators were fed cattail pollen, a commonly used supplemental food. Effects on predators of providing living A. siro and L. destructor, or frozen larvae of T. entomophagous as food, were comparable with provision of pollen. Use of supplemental food in crops can be a risk if it is also consumed by omnivorous pests such as western flower thrips, Frankliniella occidentalis Pergande. However, we showed that both frozen and living mites of T. entomophagous were unsuitable for thrips oviposition. Hence, we believe that provision of prey mite species increases A. swirskii density, supporting biological control of thrips and other pests in greenhouse crops.

scholarly journals Tank Mixtures Differentially Impact Survival of Predatory Mites used to Manage Western Flower Thrips

HortScience ◽  
2005 ◽  
Vol 40 (4) ◽  
pp. 1125C-1125
Author(s):  
Daniel F. Warnock ◽  
Heather Lash
Keyword(s):  
Biological Control Agent ◽  
Western Flower Thrips ◽  
Predatory Mites ◽  
Control Agent ◽  
Water Control ◽  
Neoseiulus Cucumeris ◽  
Flower Thrips ◽  
Old Adult ◽  
The Impact ◽  
Mite Mortality

Greenhouses contain a vast array of insect, mite, and disease pests primarily managed by applications of conventional and biorational pesticides including insecticides, miticides, and fungicides. However, biorational pesticides have a narrow range of pest activity. As a result, greenhouse producers tank mix to broaden application activity. Research has demonstrated that tank mixing can result in either synergistic or antagonistic interactions for targeted pests. However, the impact of tank mixing insecticides and fungicides on predatory mites, Neoseiulus cucumeris, used to manage western flower thrips, Franklinella occidentalis, is unknown. The objective of this research was to determine how mixtures of four different pesticides (Conserve, Avid, Cleary's, and Decree), alone and in all possible combinations affect predatory mite survival in a laboratory bioassay. Individual 2-day-old adult mites, isolated in a cell of a bioassay tray, were exposed to one of the 15 pesticide treatments, or a water control. Treatments were replicated 15 times. Trays were held in an environmental chamber and mite mortality was assessed after 24 hours. Mite mortality was differentially impacted by some pesticide treatments when compared with the water control. One pesticide mixture, Conserve + Cleary's, significantly reduced mite survival compared to other pesticide treatments or the water control. Up to 70% of the mites exposed to this treatment died. The combination of Conserve + Cleary's should be avoided as a tank mixture when the biological control agent, Neoseiulus cucumeris, is used to manage western flower thrips.

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