Comparison between the infestation rate of certain pests on cucumber and kidney bean and its relation with abiotic factors and anatomical characters.

I., Hanafy A.R.I; Baiomy, Fatina; Tantawy, Maha A. M.

doi:10.21608/eajbsa.2014.12947

Cited by 7 publications

(2 citation statements)

References 12 publications

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“…Cucumber, Cucumis sativus L. is one of the most important cucurbitaceous vegetable crops in Egypt, as it cultivated under different environmental conditions, open fields and greenhouses for local consumption and exportation (Hanafy et al, 2014). Cucumber plants are usually infested by onion thrips, Thrips tabaci L. and the two spotted spider mite, Tetranychus urticae Koch (Ghallab et al 2011 andShalaby et al 2013).…”

Section: Introductionmentioning

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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Section: Introductionmentioning

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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“…Bemisia tabaci inflicts direct damage on its host plants by extracting sap from the plant foliage. Additionally, it causes indirect damage by transmitting plant pathogenic viruses and excreting honeydew which serves as an ideal medium for the growth of sooty mold (Henneberry et al, 2000;Stansly et al, 2004 andHanafy et al, 2014). Control of B. tabaci still depends on the application of insecticides (Ayad et al, 2009;Shaoli Wang et al, 2017 andDarwish et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Efficacy of Certain Neonicotinoids Against Cotton Whitefly, Bemisia tabaci and Their Residues in Fruits and Leaves of Tomato Plants under Open Field Conditions

Atia,

Darwish,

Mansy

2024

Alexandria Science Exchange Journal

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Globally, neonicotinoids constitute a class of systemic insecticides that has become the most widely utilized group of insecticides. The efficiency of three neonicotinoid insecticides i.e. imidacloprid, thiamethoxam and dinotefuran at recommended dose were studied against the cotton whitefly, Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) on tomato plants under the open field conditions. The results showed that imidacloprid was the most efficient insecticide against the nymphs of B. tabaci followed by thiamethoxam and dinotefuran. The general means of reduction percentages of B. tabaci nymphs were 85.75, 83.24 and 75.11% after the 1 st spray and 87.53, 85.03 and 73.96% after the 2 nd spray for imidacloprid, thiamethoxam and dinotefuran, respectively. Residues of the tested pesticides in/on tomato fruits and leaves were determined using a QuEChERS method. Initial amount of the three insecticides were higher in tomato leaves compared with fruits. The half-life values (t½) for the three insecticides in tomato fruits were 2.71, 2.95 and 1.87 days for imidacloprid, thiamethoxam and dinotefuran, respectively. While these values in tomato leaves were 2.91, 3.322 and 2.108 days for imidacloprid, thiamethoxam and dinotefuran, respectively. The levels of residues were above the maximum residue limits (MRLs) up to 3, 6 and 6 days after spray (DAS) for imidacloprid, thiamethoxam and dinotefuran, respectively in tomato fruits. The determined PHI for imidacloprid, thiamethoxam and dinotefuran were 6, 9 and 9 DAS, respectively. Washing of treated tomato fruits with tap water, 10% sodium bicarbonate, and 10% vinegar for 15 min were reported to be highly effective in reducing the level of the three insecticides. The residues of the three insecticides in tomato fruits pose low health risks to consumers.

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Zabetian¹,

Sahraei²,

Hakimelahi³

et al.

106

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Comparison between the infestation rate of certain pests on cucumber and kidney bean and its relation with abiotic factors and anatomical characters.

Abstract: www.eajbs.eg.net Comparison between the infestation rate of certain pests on cucumber and kidney bean and its relation with abiotic factors and anatomical characters.

Cited by 7 publications

References 12 publications

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

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

Efficacy of Certain Neonicotinoids Against Cotton Whitefly, Bemisia tabaci and Their Residues in Fruits and Leaves of Tomato Plants under Open Field Conditions

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