NDLI: Influence of humidity and a surfactant-polymer-formulation on the control potential of the entomopathogenic nematode Steinernema feltiae against diapausing codling moth larvae (Cydia pomonella L.) (Lepidoptera: Tortricidae)

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Influence of humidity and a surfactant-polymer-formulation on the control potential of the entomopathogenic nematode Steinernema feltiae against diapausing codling moth larvae (Cydia pomonella L.) (Lepidoptera: Tortricidae)

Efficacy of entomopathogenic nematodes (Rhabditida: Steinernematidae and Heterorhabditidae) against the striped flea beetle, Phyllotreta striolata

Disease suppression and crop improvement in moong beans (Vigna radiata) through Pseudomonas and Burkholderia strains isolated from semi arid region of Rajasthan, India

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Influence of humidity and a surfactant-polymer-formulation on the control potential of the entomopathogenic nematode Steinernema feltiae against diapausing codling moth larvae (Cydia pomonella L.) (Lepidoptera: Tortricidae)

Content Provider	Springer Nature Link
Author	Navaneethan, Thurkathipana Strauch, Olaf Besse, Samantha Bonhomme, Antoine Ehlers, Ralf Udo
Copyright Year	2010
Abstract	The codling moth (Cydia pomonella L.) is a serious pest of pome fruit. Diapausing cocooned larvae overwinter in cryptic habitats in the soil or in the bark of infested trees. The entomopathogenic nematode Steinernema feltiae (Filipjev) (Rhabditida: Steinernematidae) is used to control diapausing codling moth larvae. The objective of this study was to define environmental conditions favouring the performance of the nematodes. Cocooned larvae were more susceptible than non-cocooned larvae. Susceptibility of pupae was low. To determine the influence of decreasing water activity (aw-value) on the activity of the nematodes, mortality of codling moth larvae and Galleria mellonella L. were tested in sand-sodium-polyacrylate mixtures of variable water activity. S. feltiae was able to infect both insects at aw-values >0.9. Cocooned larvae of both insects died at lower aw-values than non-cocooned larvae. Mortality of cocooned larvae did not further increase after half an hour of exposure to nematodes, whereas the mortality of non-cocooned larvae increased with increasing exposure time. LC50 and LC90 considerably decrease with increasing RH. The negative influence of the relative humidity (macro environment) was less important than the effect of the water activity in the bark substrate (micro environment). The micro environment can be manipulated by applying S. feltiae with higher volumes of water. A surfactant-polymer-formulation significantly increased nematode efficacy and can buffer detrimental environmental effects.
Starting Page	777
Ending Page	788
Page Count	12
File Format	PDF
ISSN	13866141
Journal	BioControl
Volume Number	55
Issue Number	6
e-ISSN	15738248
Language	English
Publisher	Springer Netherlands
Publisher Date	2010-06-30
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Apple Biocontrol Cocooned larvae Relative humidity Water activity Bark Behavioural Sciences Animal Biochemistry Animal Ecology Agriculture Plant Pathology Entomology
Content Type	Text
Resource Type	Article
Subject	Insect Science Agronomy and Crop Science

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Identification and Biocontrol Potential of Entomopathogenic Nematodes and Their Endosymbiotic Bacteria in Apple Orchards against the Codling Moth, Cydia pomonella (L.) (Lepidoptera: Tortricidae).

THE DURATION AND NUMBER OF THE IMMATURE STAGES OF CODLING MOTH CYDIA POMONELLA (L.) (TORTRICIDAE: LEPIDOPTERA)

Pharmacological analysis of the feeding response of codling moth (Cydia pomonella; Lepidoptera: Tortricidae) neonates to bitter compounds

Efficiency of entomopathogenic nematodes (Rhabditida: Heterorhabditidae and Steinernematidae) on the codling moth (Cydia pomonella L.) (Lepidoptera: Tortricidae) under controlled conditions

Rapid assessment of the sex of codling moth Cydia pomonella (Linnaeus) (Lepidoptera: Tortricidae) eggs and larvae

Cold tolerance and trehalose accumulation in overwintering larvae of the codling moth, Cydia pomonella (Lepidoptera: Tortricidae)

Testing an attracticide hollow fibre formulation for control of Codling Moth, Cydia pomonella (Lepidoptera: Tortricidae)

A Theoretical Approach to Study the Evolution of Aggregation Behavior by Larval Codling Moth, Cydia pomonella (Lepidoptera: Tortricidae)

Host selection behaviour in Mastrus ridens, a gregarious ectoparasitoid of codling moth, Cydia pomonella

Influence of humidity and a surfactant-polymer-formulation on the control potential of the entomopathogenic nematode Steinernema feltiae against diapausing codling moth larvae (Cydia pomonella L.) (Lepidoptera: Tortricidae)

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Identification and Biocontrol Potential of Entomopathogenic Nematodes and Their Endosymbiotic Bacteria in Apple Orchards against the Codling Moth, Cydia pomonella (L.) (Lepidoptera: Tortricidae).

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