Pyridalyl Insecticide Residues in Tomato Plants

Ramadan, M.; El-Tantawy, M. A.; Ashour, Mohamed Bassem A; Sherif, R

doi:10.21608/zjar.2016.101888

Cited by 2 publications

(1 citation statement)

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“…The pre-harvest period (PHI) for abamectin on tomatoes was 8 days after treatment. Ramadan et al (2016) found that the half-life values of abamectin were 4.1 days, so tomato fruits can be safely consumed after 7 days according to the EU Recommended (MRLs). Ibrahim et al (2018) monitor some pesticides on peppers.…”

Section: Residues Of Abamectin In Eggplant Fruits and Leavesmentioning

confidence: 99%

Health Risk Assessment of Abamectin and Buprofezin Residues in Eggplant and Pepper Plants

Shalaby

Hendawy

Aioub

et al. 2020

Journal of Plant Protection and Pathology

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Eggplant and pepper plants were sprayed with abamectin and buprofezin, respectively once at the recommended rate to study the residues and effect of tap water and acetic acid (1%) treatment as washing solution on their residues. Their risk assessment was also studied and summarized results show the following: The initial amounts of each pesticide in leaves of eggplant and pepper were much higher than the fruits. Loss percentages in residue amounts were higher in eggplant and pepper fruits than leaves. The washing of treated fruits (eggplant and pepper) with tap water and acetic acid 1% reduced considerable amounts of abamectin and buprofezin residues and it was noticed that the effect of acetic acid 1% was better than tap water in removing pesticide residues. Abamectin half-life values were 2.23 and 3.58 days on eggplant fruits and eggplant leaves, respectively. Data also revealed that fruits were consumed safely after 9 days of treatment, according to the MRL (EU Pesticides database -European Commission was 0.09 mg/kg) and risk quotient (RQ). Washing with tap water and acetic acid (1%) doesn't change this period. The calculated half-life values of buprofezin were 1.94 and 2.55 days in pepper fruits and leaves, respectively. This indicated that only 1 day was long enough to reduce the residues below the maximum residue limits (2mg/kg) on pepper according to the EU Pesticides database -European Commission and RQ. While washing with tap water and acetic acid (1%) reduced this period to two hours.

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Section: Residues Of Abamectin In Eggplant Fruits and Leavesmentioning

confidence: 99%

Health Risk Assessment of Abamectin and Buprofezin Residues in Eggplant and Pepper Plants

Shalaby

Hendawy

Aioub

et al. 2020

Journal of Plant Protection and Pathology

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Residues of Profenofos with Special Reference to its Removal Trials and Biochemical Effects on Tomato

Shalaby

2016

Journal of Plant Protection and Pathology

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During June of 2016 tomato plants were sprayed with profenofos (Seliton 72% E.C.) at the rate of 750 cm 3 / feddan (540 g a.i.). Leaves and fruits samples were collected at 2 hrs to 15 days after application and analyzed using GC. Results revealed that, the initial amounts in leaves were much higher than in tomato fruits. A rapid degradation of profenofos residues was noticed in tomato fruits comparing with tomato leaves. The washing of the treated fruits (2 hours) with tap water or 1% of soap, sodium chloride, acetic acid and potassium permanganate reduced indicating the initial deposits (20.53 mg/kg) to 6.11, 9.03, 7.69, 9.87 and 5.06 mg/kg indicating 70.24, 56.02, 62.54, 51.92 and 75.35% dislodge, respectively. Preparation of tomato paste reduced profenofos residues to undetected amounts being 100% removal. The consumable safety time was 3 days after application and this period could be shorted to two hours after spraying if harvested tomato fruits were washed with the above mentioned washing solutions or prepared to tomato paste. Profenofos significantly reduced the mean levels of each N, P, K, Ca, Fe, Mn. As well as the mean levels of total soluble solid (T.S.S.), ascorbic acid, β-carotene, acidity and protein were significantly reduced at 6, 9 and 15 days of spraying. The mean amounts of total soluble sugars and glucose were not significantly affected by profenofos. Dry matter in treated tomato fruits were significantly increased compared with control.

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Pyridalyl Insecticide Residues in Tomato Plants

Cited by 2 publications

References 0 publications

Health Risk Assessment of Abamectin and Buprofezin Residues in Eggplant and Pepper Plants

Health Risk Assessment of Abamectin and Buprofezin Residues in Eggplant and Pepper Plants

Residues of Profenofos with Special Reference to its Removal Trials and Biochemical Effects on Tomato

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