Efficacy of Actara 240sc (Thiamethoxam), Applied as a Drench Against Mango Seed Weevil (Sternochetus Mangiferae) on Mangoes in South Africa

Louw, C. E.; Lagadec, M. D. le; Labuschagne, C.; Erasmus, Annemie

doi:10.17660/actahortic.2009.820.71

Cited by 6 publications

(3 citation statements)

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“…1.44 (6 ml) and 1.92 g a.i. (8 ml/tree) with two different methods of application i. e. by dripper or sprinkler around the base of the stems (Louw et al, 2009). Thiamethoxam is a second generation neonicotinoid with stomach and contact activity (Devine et al, 1969).…”

Section: Discussionmentioning

confidence: 99%

EVALUATION OF PESTICIDES TO CONTROL MANGO STONE WEEVIL (Sternochetus Mangiferae; Fabricius; Coleopter: Curculionidae) IN EASTERN TERAI OF NEPAL

Upadhyay¹,

Aryal²,

Bhusal³

2022

Sust.food.agr.

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Mango, Mangifera indica (L.) is the important fruit crop in production in Nepal. Sternochetus mangiferae; Fabricius (Coleoptera: Curculionidae) is major monophagous insect pest which causes loss of both quantitative and qualitative value. To mitigate this problem, we designed and conducted experiment in Randomized Complete Block Design to evaluate effective insecticide against mango stone weevil on station and farmers orchard in two consecutive years at Sunsari and Udaipur districts. We sprayed five insecticides namely: azadirachtin, thiamethoxam, flubendiamide, lamda cyhalothrin and dimethoate in recommended doses on mango plant when the fruit was of pea size for four times at ten days interval. The damage was recorded at harvesting stage. Significantly less damage was recorded on the thiamethoxam treated plants followed by flubendiamide and lamda cyhalothirn. The interaction of the treatments with the location and years was not significantly different suggesting that the year and location had not any influence on the treatment effect. Our result suggested that thiamethoxam is effective to manage mango stone weevil.

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Section: Discussionmentioning

confidence: 99%

EVALUATION OF PESTICIDES TO CONTROL MANGO STONE WEEVIL (Sternochetus Mangiferae; Fabricius; Coleopter: Curculionidae) IN EASTERN TERAI OF NEPAL

Upadhyay¹,

Aryal²,

Bhusal³

2022

Sust.food.agr.

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“…Various insecticides are registered for control. A systemic neo-nicotinoid, thiamethoxam applied as a soil drench during flowering is effective under South African conditions but can no longer be used on export fruit due to the lowering of the MRL (Louw et al 2009). The use of kaolin alone and in combination with sulphur and lime sulphur were effective against mango seed weevil ( Joubert et al 2004).…”

Section: Mango Seed Weevilmentioning

confidence: 99%

Progress towards an eco-friendly insect pest management approach in subtropical agro-ecosystems (South Africa)

Grové

2022

CABI Agric Biosci

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South Africa is a known exporter of subtropical fruit (avocado, litchi and mango). The main production areas for subtropical fruit in South Africa are parts of Limpopo, Mpumalanga and KwaZulu-Natal. The avocado and litchi industries are export orientated while the majority of mangoes produced are processed. The main export markets are the European Union and the United Kingdom. Subtropical fruit production is susceptible to various insect pests that significantly contribute to yield losses. Twenty years ago mainly broad spectrum insecticides (organophosphates and pyrethroids) had been registered for control of pests and progress was made in adopting eco-friendlier management approaches. The lowering of maximum residue levels for pesticides on food products by importing countries provide new challenges for growers. Here, details are provided on the important insect pests of subtropical crops and the current management strategies use for controlling these pests. An integrated pest management strategy should aim to use interventions that lower maximum residue levels. A challenge that still remains is the sucking bug complex on avocado and more environmentally friendly strategies used for suppression need to be developed. An effective trapping system to monitor adult sucking bugs coming into the orchards will be important for effective management. Challenges that still remain are the litchi moth, Cryptophlebia peltastica (Meyrick) (Lepidoptera: Tortricidae) on litchi, and the citrus thrips, Scirtothrips aurantii Faure (Thysanoptera: Thripidae) and the mango seed weevil, Sternochetus mangiferae (Fabricius) (Coleoptera: Curculionidae) on mango. The development and testing of mating disruption products, attract and kill products, and biological control products for litchi moth is important. Biological control products also need to be tested against citrus thrips on mango. The mango industry needs to find more environmentally safe suppression methods that can be used with sanitation to manage mango seed weevil as it is a pest of phytosanitary concern. The set of economic thresholds for the important pests also need some attention. The use of botanical pesticides has not yet been tested on a large scale and could possibly contribute to the control of pests in the future.

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“…Thiamethoxam is toxic to several other curculionid pests of fruits (AFONSO et al, 2005;GUEDES et al, 2007;ŁABANOWSKA, 2009;LOUW et al, 2009;NÖRNBERG et al, 2016). However, there are no studies testing the efficacy of this product to control R. palmarum in coconut palms, limiting comparisons with the current study.…”

Section: Introductionmentioning

confidence: 99%

Effect of plant protection products on Rhynchophorus palmarum L. (Coleoptera: Curculionidae) larvae in laboratory

et al. 2018

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With the aim of developing tools for simultaneously managing Rhynchophorus palmarum and the coconut stem bleeding disease, we evaluated the effects of the insecticide thiamethoxam and the fungicide cyproconazole on R. palmarum larvae under laboratory conditions. Early-instar and intermediate-instar larvae were fed on an artificial diet containing 0.1% concentration of insecticide, fungicide or a mixture of both. Larval mortality was assessed daily during the 48 hours after the application of the treatments. Mean mortality values were subjected to analysis of variance and compared by Tukey’s test (p ≤ 0.05). Thiamethoxam caused mortality of 100% of early-instar and 90% of intermediate-instar larvae. In contrast, mortality was significantly lower in the cyproconazole treatment (60% for early-instar and 0% for intermediate-instar larvae) and the control (0% mortality for both treatments). The insecticide/fungicide mixture was equally effective (100% for early-instar and 86.67% for intermediate-instar larvae) to the insecticide only treatment. Differences in mortality between early-instar and intermediate-instar larvae were significant only for the thiamethoxam and cyproconazole treatments. These results indicate that, for the doses used here, thiamethoxam is toxic to both early-instar and intermediate-instar larvae, while cyproconazole is toxic just to early-instar larvae. Moreover, cyproconazole does not increase the toxicity of thiamethoxam. Early-instar larvae are more sensitive to thiamethoxam and cyproconazole than intermediate-instar larvae. We conclude that thiamethoxam + cyproconazole mixture may be effective for managing R. palmarum and associated fungal diseases on coconut palms.

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Efficacy of Actara 240sc (Thiamethoxam), Applied as a Drench Against Mango Seed Weevil (Sternochetus Mangiferae) on Mangoes in South Africa

Cited by 6 publications

References 0 publications

EVALUATION OF PESTICIDES TO CONTROL MANGO STONE WEEVIL (Sternochetus Mangiferae; Fabricius; Coleopter: Curculionidae) IN EASTERN TERAI OF NEPAL

EVALUATION OF PESTICIDES TO CONTROL MANGO STONE WEEVIL (Sternochetus Mangiferae; Fabricius; Coleopter: Curculionidae) IN EASTERN TERAI OF NEPAL

Progress towards an eco-friendly insect pest management approach in subtropical agro-ecosystems (South Africa)

Effect of plant protection products on Rhynchophorus palmarum L. (Coleoptera: Curculionidae) larvae in laboratory

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Efficacy of Actara 240sc (Thiamethoxam), Applied as a Drench Against Mango Seed Weevil (Sternochetus Mangiferae) on Mangoes in South Africa

Cited by 6 publications

References 0 publications

EVALUATION OF PESTICIDES TO CONTROL MANGO STONE WEEVIL (Sternochetus Mangiferae; Fabricius; Coleopter: Curculionidae) IN EASTERN TERAI OF NEPAL

EVALUATION OF PESTICIDES TO CONTROL MANGO STONE WEEVIL (Sternochetus Mangiferae; Fabricius; Coleopter: Curculionidae) IN EASTERN TERAI OF NEPAL

Progress towards an eco-friendly insect pest management approach in subtropical agro-ecosystems (South Africa)

Effect of plant protection products on Rhynchophorus palmarum L. (Coleoptera: Curculionidae) larvae in laboratory

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Efficacy of Actara 240sc (Thiamethoxam), Applied as a Drench Against Mango Seed Weevil (Sternochetus Mangiferae) on Mangoes in South Africa