Persistence of Deltamethrin on Apple, Grapes, Cucumber and Tomato in Syrian Environment

This study investigated the Persistence of Deltamethrin on Apple, Grape, Tomato and Cucumber. as follows:The grape and apple trees were sprayed with Deltamethrin at rate 250 Cm3/ha, while Cucumber and tomato were sprayed with Deltamethrin at rate 150 cm3/ha. The half-life of Deltamethrin was 5.36, 5.78, 2.32, 2.11 days on grape, apple, tomato and cucumber respectively. The calculated safety periods of Deltamethrin were 7, 4, 0, 3 days for grape, apple, cucumber and tomato respectively. Although the pesticide container label, states that crops can be consumed immediately after spraying.

Laboratory Study of Impact of some Insecticides and Balanced Fertilizer in a Number of the Soil Fungi that used as Biological Control Agents

A Study was carried out to evaluate the impact of some insecticide. The results showed that no effects on growth of the studied fungi were observation when Deltamethrin and Chlorpyrifos were used by the low concentration.

Study of Persistence Residues of Dimethoate and Deltamethrin Grape in Hamah in Syria

Study was conducted at Hama on summer ١٩٩٨ to determine the Persistence of two pesticides, the Organophosphorus Dimethoate, and the Pyrethroid Deltamethrin, on the Grapes.