Evaluation of Insecticides for the Management of Litchi Fruit and Shoot Borer

Upadhyay, Sudeep Kumar; Aryal, Sunil; Bhusal, Bikash; Chaudhary, B. D.

doi:10.3126/jnarc.v6i0.28119

Cited by 3 publications

(3 citation statements)

References 19 publications

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“…These results were supported by Alam et al (2019), who reported that the treatment (chloran traniliprole10% + thiamethoxam 20%) 300 SC provided a better result both in terms of mean fruit infestation (13.10 %) and yield per plant in the number basis. The chlorantraniliprole (18.5% SC) was found to be most efficient against C. sinensis, as Upadhyay et al (2020) reported.…”

Section: Discussionsupporting

confidence: 74%

Comparative Efficacy of Pyrethroid and Neonicotinoid Insecticides to Manage Litchi Fruit Borer

Taher¹,

Uddin²,

Islam³

2022

J. Agrofor. Environ.

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Lychee is damaged by the litchi fruit borer (LFB), Conopomorpha sinensis severely reduces the yield and marketable quality of the fruits, and farmers face a substantial financial loss. An experiment was conducted for two consecutive years in the commercial litchi orchard. The study evaluated the efficacy of some insecticides under the group of pyrethroids, such as cypermethrin (Ripcord 10 EC), deltamethrin (Decis 2.5 EC), and fenvalerate (Fenfen 20 EC), neonicotinoids as imidacloprid (Imitaf 20 SL), thiamethoxam (Actara 25 WG), and pre-formulation of chlorantraniliprole+thiamethoxam (Voliam flexi 300 SC) and organophosphate (Hilthion 57 EC). All insecticides are used with recommended doses against C. sinensis to develop an appropriate management strategy. Among the treatments, spraying of voliam flexi 300 SC observed the maximum reduction of infestations over the control trees (99.47%), followed by imitaf, actara, decis, ripcord, fenfen, and hilthion. The highest benefit-cost ratio was obtained from the treated fruit trees with voliam flexi (12.11:1) and near about in fenfen and decis. Considering the effectiveness, spraying of voliam flexi at the rate of 0.5 ml per litre of water, followed by two sprays, first at ten days after the fruit set and then 20 days after the first spray. It is the most promising insecticidal approach for managing C. sinensis and may reduce the health risk to humans and save desirable components of the environment.

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Section: Discussionsupporting

confidence: 74%

Comparative Efficacy of Pyrethroid and Neonicotinoid Insecticides to Manage Litchi Fruit Borer

Taher¹,

Uddin²,

Islam³

2022

J. Agrofor. Environ.

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“…In our research work we found that flubendiamide was effective against S. mangiferae which was also effective to control litchi fruit and shoot borer (Upadhyay et al, 2020). There also reported that flubendiamide was effective in controlling Leucinodes orbonalis (Khushwaha and Painkara, 2016).…”

Section: Discussionmentioning

confidence: 63%

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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“…The vulnerable period between egg hatching and fruit penetration, where the larvae are exposed to chemical treatments outside the fruits, is very short to attain the required control (Schulte, Martin, & Sauerborn, 2007). However, Upadhyay, Aryal, Bhusal, and Chaudhary (2020) tested five insecticides applied at ten-day interval against C. sinensis and found that all the insecticides were effective as compared to the control. Schulte et al (2007) suggested weekly applications of insecticides such as permethrin for effective control of fruit borer.…”

Section: Introductionmentioning

confidence: 99%

Management of Litchi Fruit and Shoot Borer (Conomorpha sinensis) in Three Litchi Varieties in Samtenling, Bhutan

Kinley¹,

Dhimal²

2022

BJA

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In Bhutan, litchi production is constrained by insect pest damage. Among insect pests, the litchi fruit and shoot borer (Conopomorpha sinensis Bradley) is an emerging pest of economic importance in the subtropical regions of Bhutan. Up until now, there is documented research on its biology and management in Bhutan. Therefore, this study was undertaken to study the efficacy of two different management methods against litchi fruit borer infestation in three litchi varieties (Bhur litchi 1, Bhur litchi 2 & Hong houy). The management methods consisted of three treatments; T1-Azadirachtin followed by Imidacloprid, Azadirachtin and Cypermethrin; T2-Azadirachtin followed by Imidacloprid, Azadirachtin and Azadirachtin; T3-Untreated control. The result showed that the fruit infestation at harvest was significantly lower in management method T1 (34.74%) as compared to T2 (78.07%) and untreated control (89.98%). In terms of the variety, the lowest fruit infestation at harvest was observed for Hong houy (56.02%) as compared to Bhur Litchi 1 (73.28%) and Bhur Litchi 2 (73.45%). There were no significant differences in fruit drop percent and percent infestation of dropped fruits between the treatments and varieties tested. Heavy fruit drop was observed in the third week, due to unknown reasons, which then decreased over the fruit development stages. Fruit borer infestation seems to increase rapidly after the fifth and eighth weeks indicating that most of the fruit borer damage occurs at the fruit maturity stage after fruit colour break. Therefore, the last application of cypermethrin 10% EC at the fruit colour break stage was found necessary to reduce fruit infestation during this vulnerable pest infestation period besides scheduled application of Azadirachtin and Imidacloprid at the early fruit development period.

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Evaluation of Insecticides for the Management of Litchi Fruit and Shoot Borer

Cited by 3 publications

References 19 publications

Comparative Efficacy of Pyrethroid and Neonicotinoid Insecticides to Manage Litchi Fruit Borer

Comparative Efficacy of Pyrethroid and Neonicotinoid Insecticides to Manage Litchi Fruit Borer

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

Management of Litchi Fruit and Shoot Borer (Conomorpha sinensis) in Three Litchi Varieties in Samtenling, Bhutan

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