Lethal and Sub-Lethal Effects of Spirotetramat on Red Spider Mite, Tetranychus macfarlanei Baker and Pritchard (Acari: Tetranychidae) DOI Creative Commons

Farhana Afrose Swarna,

Tasfia Hayder,

Shreema Mandal Barsa

et al.

Arthropoda, Journal Year: 2024, Volume and Issue: 2(3), P. 212 - 225

Published: Sept. 12, 2024

The red spider mite, Tetranychus macfarlanei, is a serious pest of many cultivated crops in Bangladesh and other East-Asian South-East Asian countries, the Afrotropical, Oriental, Palearctic regions. Sublethal concentration pesticides, such as LC15 LC30 (the concentrations that result 15 30 percent lethality, respectively) impact reproduction, behavior, development, physiology. This study assessed effects different spirotetramat, an insecticide disrupts lipid production, on biological traits T. macfarlanei. LC15, LC30, LC50, LC90 values were 2.16, 6.57, 20.54, 332.81 mg·L−1, respectively. (LC15 LC30) slightly reduced female fecundity but did not significantly affect development duration, pre-oviposition, oviposition period, or longevity compared to untreated control group. Life table parameters differed between treated groups, with significant reductions intrinsic rate increase (r), net reproductive (R0), finite (λ) for LC30. had negative females. demonstrated lower lethal spirotetramat compromised survivability negatively impacted life-table subsequent generations These findings highlight importance sublethal control, offering valuable insights developing more effective sustainable integrated management strategies.

Language: Английский

Transgenerational Sublethal Effects Of Sulfoxaflor On The Suppression Of Aphis Citricola Van Der Goot (Hemiptera: Aphididae) DOI

Yuntao Feng,

Xiaojun Guo,

Ya Li

et al.

Published: Jan. 1, 2025

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Language: Английский

Citations

0
Sublethal and lethal effects of avermectin on reproductive success, hormonal regulation, and population dynamics of the oriental fruit fly, Bactrocera dorsalis DOI

Zhen Li,

Xiaolong Wang, Mengyuan Ren

et al.

Pest Management Science, Journal Year: 2025, Volume and Issue: unknown

Published: May 12, 2025

Abstract BACKGROUND The oriental fruit fly, Bactrocera dorsalis , causes significant economic losses in production because of its high reproductive rate and adaptability. current study investigated the sublethal lethal effects avermectin, a macrocyclic lactone insecticide, on F 0 1 generations B. . RESULTS This demonstrated that exposure to avermectin with (LC 5 LC 20 50 ) concentrations reduced mating rates, prolonged pre‐mating periods, lowered levels juvenile hormone (JH) 20‐hydroxyecdysone (20E). Furthermore, resulted decrease vitellogenin ( Vg receptor VgR levels, downregulated expression corresponding genes. Subsequent investigations revealed led sugar accumulation indicated by decreased glycogen, glucose trehalose alongside impaired trehalase activities lower triglyceride content generation These metabolic disruptions contributed hatching, pupation emergence pupal weights parameters (as life table parameters) generation. increased detoxifying enzymes such as glutathione S ‐transferase, carboxylesterase cytochrome P450 monooxygenases were found, suggesting an adaptive response detoxify avermectin. CONCLUTION findings highlight potential long‐term impacts population dynamics underscore need for incorporating considerations into integrated pest management strategies. © 2025 Society Chemical Industry.

Language: Английский

Citations

0
Lethal and Sub-Lethal Effects of Spirotetramat on Red Spider Mite, Tetranychus macfarlanei Baker and Pritchard (Acari: Tetranychidae) DOI Creative Commons

Farhana Afrose Swarna,

Tasfia Hayder,

Shreema Mandal Barsa

et al.

Arthropoda, Journal Year: 2024, Volume and Issue: 2(3), P. 212 - 225

Published: Sept. 12, 2024

The red spider mite, Tetranychus macfarlanei, is a serious pest of many cultivated crops in Bangladesh and other East-Asian South-East Asian countries, the Afrotropical, Oriental, Palearctic regions. Sublethal concentration pesticides, such as LC15 LC30 (the concentrations that result 15 30 percent lethality, respectively) impact reproduction, behavior, development, physiology. This study assessed effects different spirotetramat, an insecticide disrupts lipid production, on biological traits T. macfarlanei. LC15, LC30, LC50, LC90 values were 2.16, 6.57, 20.54, 332.81 mg·L−1, respectively. (LC15 LC30) slightly reduced female fecundity but did not significantly affect development duration, pre-oviposition, oviposition period, or longevity compared to untreated control group. Life table parameters differed between treated groups, with significant reductions intrinsic rate increase (r), net reproductive (R0), finite (λ) for LC30. had negative females. demonstrated lower lethal spirotetramat compromised survivability negatively impacted life-table subsequent generations These findings highlight importance sublethal control, offering valuable insights developing more effective sustainable integrated management strategies.

Language: Английский

Citations

0