Efficacy of some pesticides against Tetranychus urticae Koch (Acari: Tetranychidae) and their residual effects on Coccinella septempunctata (L.) (Coleoptera: Coccinellidae)

Rabbi, Alina; Uddin, Md. Nizam; Alim, Md. Abdul; Bachchu, Md. Adnan Al; Bhuyain, Mohammad Mosharof Hossain; Akter, Sharmin

doi:10.1007/s42690-021-00581-w

Cited by 5 publications

(5 citation statements)

References 47 publications

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“…In this study, the MARs of the insecticides imidacloprid, dinotefuran, thiamethoxam, and acetamiprid, which are all from the neonicotinoid insecticide family, were 68‐, 183‐, 600‐, and 440‐fold the pre‐adult LR 50 values, and their HQ values were greater than the trigger value of 5 in both in‐ and off‐ field exposure scenarios, indicating that neonicotinoids pose a high toxicity to H. axyridis . Identical conclusions for other ladybird beetles were reported in some previous studies 22,35–41 …”

Section: Discussionsupporting

confidence: 88%

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Toxicity and risk assessment of nine pesticides on nontarget natural predator Harmonia axyridis (Coleoptera: Coccinellidae)

Cheng

Xue³

et al. 2022

Pest Management Science

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BACKGROUND: Harmonia axyridis (Coleoptera: Coccinellidae) is a beneficial predatory arthropod in the agricultural ecosystem. For the success and development of integrated pest management strategies, it is essential to assess the toxicity risks of commonly used pesticides to nontarget arthropods. RESULTS:The glass tube residue method was used to determine the risk of nine pesticides to H. axyridis after second-instar exposure. To assess the potential risk of the selected pesticides, the pre-adult LR 50 values were calculated by the hazard quotient (HQ) method. The LR 50 (application rate causing 50% mortality) values of imidacloprid, dinotefuran, thiamethoxam, acetamiprid, bifenthrin, and dimethoate were 0.44, 0.82, 0.10, 0.05, 0.04, and 0.21 g a.i. ha −1 , respectively, showing unacceptable risk to H. axyridis after exposure to in and off field. However, emamectin benzoate and two fungicides, tebuconazole and myclobutanil, posed a low risk to H. axyridis and their HQ values were less than the trigger value of 5. CONCLUSIONS:The four neonicotinoid insecticides (imidacloprid, dinotefuran, thiamethoxam, and acetamiprid), pyrethroid bifenthrin, and organophosphorus dimethoate showed a high risk to H. axyridis. Emamectin benzoate, tebuconazole, and myclobutanil showed a low risk to H. axyridis under both exposure scenarios. The results provide critical scientific evidence to guide future regulation of pesticide management practices and protection of nontarget arthropods like H. axyridis.

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Section: Discussionsupporting

confidence: 88%

“…Identical conclusions for other ladybird beetles were reported in some previous studies. 22,[35][36][37][38][39][40][41] The pre-adult LR 50 values of pyrethroid bifenthrin and organophosphorus dimethoate were 0.04 and 0.21 g a.i. ha −1 , respectively, significantly lower than the recommended rates of 30 and 600 g a.i.…”

Section: Discussionmentioning

confidence: 99%

Toxicity and risk assessment of nine pesticides on nontarget natural predator Harmonia axyridis (Coleoptera: Coccinellidae)

Cheng

Xue³

et al. 2022

Pest Management Science

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“…This means that even after the initial application, these compounds continued to display effectiveness in controlling T. urticae for a more extended period compared to other compounds. Based on the findings, it is suggested that abamectin and chlorfenapyr can be recommended for the management of mites due to their higher toxicity and extended residual efficacy (Rabbi et al, 2021). The highest mortality percentage in T. urticae populations was 98.4 % after 24h of spraying with abamectin (Senbill et al, 2023).…”

Section: Tetranychus Urticaementioning

confidence: 99%

Side Effects of Some Pesticides Applied on Thrips Tabaci L. And Tetranychus Urticae (Koch) on Some Biochemical Contents and Enzyme Activities of Cucumber Leaf

El Fakhrany,

sadek,

abouelkassem

et al. 2024

Menoufia Journal of Plant Protection

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Thrips tabaci L. and Tetranychus urticae (Koch) are pests that can cause direct and indirect damage to cucumber plants. T. tabaci and T. urticae population densities were recorded in cucumber highest peaks in April and May in 2022 and 2023 seasons in greenhouse at Sakha. The effectiveness of nine pesticides in controlling infestations of T. urticae and T. tabaci on cucumber plants was investigated. A significant reduction in T. urticae eggs following of jojoba oil compared to the other compounds tested but abamectin+ bifenthrin was the most in reducing T. urticae mobile stage in cucumber plants, while thiamethoxam + abamectin was the least in this pest eggs and mobile stage control. Almost, reduction was found highly significant differences among treatments of T. urticae eggs (p≤0.01). All treatments proved to be the most potent on T. Tabaci reduction, with highly significant differences (p≤0.01). The application of different compounds resulted in significant differences in chlorophyll content. Non -enzymatic components significantly decreased in cucumber plants due to some compounds in comparison with the control. The increase of carbohydrates, fats and total phenols% were observed in leaves with abamectin + bifenthrin treatment. Also, the effect of jojoba oil on increasing the protein content and total lipid in the leaves. Jojoba oil treatment increased the of enzymatic activity (catalase, peroxidase and polyphenol oxidase) specially at 10 days after application to an extent of 29.91, 19.68 and 21% respectively.

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“…Thus, we found a relation between climatic factors and mite populations. Alina et al (2022) discovered that imidacloprid caused 100 percent mortality of T. urticae motile stages within 48 hours, and the toxicity test on eggs was more significant, causing 65 percent mortality. According to Badawy et al (2022), abamectin was the most effective for adults (LC50 = 5.39) after 24 hours of treatment, followed by chlorfenapyr (LC50 = 106.5 mg), and pyridaben was low toxic (LC50 = 690.23 mg).…”

Section: -Effect Of Some Insecticides On the Population Density Of T ...mentioning

confidence: 99%

Population Fluctuations of Some Phytophagus Mites and Their Predators and Sensitivity of Tetranychus urticae (Koch) for Some Insecticides on Cotton Plants

El-Shamy

El-Rahman

Farag

2023

Journal of the Advances in Agricultural Researches

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Cotton plants are liable to many pests specially, mites which causing reduction in cotton production. Thus, field experiments were conducted at the Sakha Agriculture Research Station during the seasons 2021 and 2022 to survey and monitor population fluctuations of three mite species and Amblyseius gossypii El-Badry (Barasitiforme: phytoseiidae) on cotton. Also, toxicity of imidacloprid and acetamiprid were examined on the two-spotted spider mite, Tetranychus urticae (Acari: Tetranychidae). Twelve species of mites found associated with cotton plants were belonging to 4 families which included mites and its associated predators. T. urticae and A. gossypii had the highest mite frequency rate. In these studies, the infestation of T. urticae formed two peaks that appeared in mid-Aug. and Sep. in the first and second seasons, respectively. Two peaks of A. gossypii were also appeared in Sep. and Oct. during the two studied seasons. The combined impact of climatic factors on population fluctuation of both T. urticae and Tetranychus cinnabarinus (Boisduval) (Acariformes: Tetranychidae) was insignificant over the two seasons, according to the results. It was highly significant relationships between Tetranychus cucurbitacearum Sayed (Acariformes: Tetranychidae) and RH% during the two seasons and highly significant relationships with A. gossypii during 2022. The combined impact of climatic factors and A. gossypii explained 78.9, 80.1 and 58.5% of the variance (EV) for T. urticae, T. cucurbitacearum, and T. cinnabarinus, respectively, in the first season. In the second season combined impact EV% was 71.5, 82.9 and 61.3 % for the three mites, respectively. Imidacloprid (seed treatment) was the least toxic with total mean reduction percentages of 30.3 and 42.6 % in 2021 and 2022, respectively. While acetamiprid was the most effective on sprayed plants, with a reduction percentage of 96.72 and 97.78% during the first and second seasons, respectively. These data revealed that the correlation between mites, predators, and climatic factors was conflicting, and imidacloprid and acetamiprid can significantly minimize the infestation of T. urticae on cotton plants and be used in IPM programs.

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Efficacy of some pesticides against Tetranychus urticae Koch (Acari: Tetranychidae) and their residual effects on Coccinella septempunctata (L.) (Coleoptera: Coccinellidae)

Cited by 5 publications

References 47 publications

Toxicity and risk assessment of nine pesticides on nontarget natural predator Harmonia axyridis (Coleoptera: Coccinellidae)

Toxicity and risk assessment of nine pesticides on nontarget natural predator Harmonia axyridis (Coleoptera: Coccinellidae)

Side Effects of Some Pesticides Applied on Thrips Tabaci L. And Tetranychus Urticae (Koch) on Some Biochemical Contents and Enzyme Activities of Cucumber Leaf

Population Fluctuations of Some Phytophagus Mites and Their Predators and Sensitivity of Tetranychus urticae (Koch) for Some Insecticides on Cotton Plants

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