Chilli thrips, Scirtothrips dorsalis Hood (Thysanoptera: Thripidae) Management Practices for Florida Strawberry Crops

Kaur, Gagandeep; Lahiri, Soumendra N.

doi:10.32473/edis-in1346-2022

Cited by 6 publications

(5 citation statements)

References 8 publications

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“…The minute eggs can survive for up to a week within delicate plant tissues. Typical first and second-instar larvae measure between 0.36–0.38 mm and 0.68–0.71 mm, respectively, while pupae can range from 0.78 to 0.80 mm in size ( Deka et al, 2020 , Kaur and Lahiri, 2022 ). Adult thrips have pale yellow bodies with dark brown antecostal ridges on their tergites and sternites.…”

Section: Pests In Chili Plantationsmentioning

confidence: 99%

Exploring the Global Trends of Bacillus, Trichoderma and Entomopathogenic Fungi for Pathogen and Pest Control in Chili Cultivation

Sam-on,

Mustafa,

Yusof

et al. 2024

Saudi Journal of Biological Sciences

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Section: Pests In Chili Plantationsmentioning

confidence: 99%

Exploring the Global Trends of Bacillus, Trichoderma and Entomopathogenic Fungi for Pathogen and Pest Control in Chili Cultivation

Sam-on,

Mustafa,

Yusof

et al. 2024

Saudi Journal of Biological Sciences

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“…(Hemiptera: Geocoridae) are natural predators of thrips. Both minute pirate bugs and bigeyed bugs feed on larvae and adult thrips (Kaur 2022).…”

Section: Biological Controlmentioning

confidence: 99%

Common Arthropod Pests in Blackberries and Pomegranates in Florida

Perry

Smith²,

Deng³

et al. 2022

EDIS

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Blackberry and pomegranate are growing in importance as alternative crops in Florida. In the past decade, blackberry production in Florida increased from 64 acres in 2007 to 173 acres in 2017. The many health benefits acquired from these fruits make them good alternative options for growers in Florida to diversify their operations by planting some new and less traditional crops, providing them a niche in the Florida agriculture market. The intended audience of this publication includes blackberry and pomegranate growers in Florida as well as Extension agents providing expert recommendations to both these industries. The purpose of this publication is to share information derived from a one-year field survey on commonly encountered pests.

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“…However, overuse of certain products may lead to the development of insecticide resistance or reduce natural enemy populations. For example, foliar application of the insecticide, spinetoram [Insecticide Resistance Action Committee (IRAC) Group 5] is currently relied on for thrips management in strawberries, resulting in reports of possible resistance development given the lack of alternative effective modes of action (Kaur & Lahiri, 2022). Spinetoram has systemic properties with very low toxicity to natural enemies and other beneficial insects (Pugh et al, 2015; Srivastava et al, 2008) and currently provides significant control against S. dorsalis in pepper and strawberry (Lahiri & Panthi, 2020; Seal et al, 2006a, 2006b).…”

Section: Introductionmentioning

confidence: 99%

Reduced insecticide susceptibility among populations of Scirtothrips dorsalis Hood (Thysanoptera: Thripidae) in strawberry production

Kaur

Stelinski

Martini

et al. 2023

J Applied Entomology

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Chilli thrips, Scirtothrips dorsalis Hood (Thysanoptera: Thripidae) is a major, economically important, and recent invasive pest of strawberries and other horticultural crops in United States. Several conventional insecticides are used for S. dorsalis management, and resistance development threatens loss of few available tools. Hence, our objectives were to: (1) determine the susceptibility of S. dorsalis to commonly used conventional insecticides: spinetoram, acetamiprid, cyantraniliprole and bifenthrin, and (2) establish LC 50 and LC 90 dosages for spinetoram against S. dorsalis. Sampling of S. dorsalis populations was conducted twice in seven strawberry fields in Florida during the strawberry field season between 2019 and 2020. Leaf-disc bioassays were performed with field collected populations along with a susceptible 2-year-old laboratory culture of S. dorsalis. Overall, at highest recommended rate the percent mortality of late season S. dorsalis populations from five out of seven collection sites was lower (~41%) than average mortality observed with early season populations (~72%).Populations from at least four out of seven sampling sites exhibited significantly lower mortality than the laboratory susceptible culture in late season. The LC 50 and LC 90 values for spinetoram for the susceptible laboratory population were 0.026 and 8.64 ppm, respectively. On the other hand, LC 50 values of field collected populations to spinetoram varied with resistance ratios ranging from 6 to 269 fold as compared against the laboratory strain. Our results suggest that susceptibility of S. dorsalis to commonly used insecticides in strawberries varies significantly between early and late season populations within the same crop season. The efficacy of bifenthrin against S. dorsalis was particularly low (~ reduced to half in late season), especially among field collected populations. Our results indicate an urgent need to incorporate other pest management strategies, as well as effective rotation programs to reduce selection for resistance among populations of S. dorsalis in strawberry production.

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Chilli thrips, Scirtothrips dorsalis Hood (Thysanoptera: Thripidae) Management Practices for Florida Strawberry Crops

Abstract: This publication provides current management practices for chilli thrips in both conventional and organic strawberries as a guide for Extension agents and growers.

Cited by 6 publications

References 8 publications

Exploring the Global Trends of Bacillus, Trichoderma and Entomopathogenic Fungi for Pathogen and Pest Control in Chili Cultivation

Exploring the Global Trends of Bacillus, Trichoderma and Entomopathogenic Fungi for Pathogen and Pest Control in Chili Cultivation

Common Arthropod Pests in Blackberries and Pomegranates in Florida

Reduced insecticide susceptibility among populations of Scirtothrips dorsalis Hood (Thysanoptera: Thripidae) in strawberry production

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