Evaluation of different spraying methods on cucumber leaf spot disease using Rovral T S fungicide and its residue levels on cucumber fruits under green house conditions.
2010
Najafinia , Mousa | Morovati , Mohsen | Hidari , Ahmad | Moemeni , Davood
The safety of produced crops is very important. In different countries the accepted maximum residue level (MRL) may be different and all imported crops should be followed the rules. This research was conducted to compare the efficiency of different sprayer including Motorized knapsack mist Blowers sprayer with Electrostatic Head, Motorized knapsaclt Mist Blowers sprayer with Micronear Head, Motorized Khapsack Mist Blowers sprayer with common Head and Hydraulic Motorized sprayer on trolley to control the cucumber leaf spot disease and also to determine the residue level of Rovral T S (1kg/ha) as target fungicide. The result showed that, while using the Motorized knapsack mist Blowers sprayer with Electrostatic Head, the lowest amount of water and fungicide (195 L/ha) were reported. The maximum amount of water (603 L/ha) was reported while using the Hydraulic Motorized sprayer on trolley. In term of the efficiency of fungicide to control leaf spot disease, there was no significant difference among treatments. During first five days, all treatment showed significant difference in compare with control, but five days after spraying all treatments along with control came to same group while using Duncan's multiple test. Based on our results, while using the, Motorized knapsack mist Blowers sprayer with Electrostatic Head the minimum drift was reported (the results of sensitive cards) and all sprayed solutions covered target leaves surface. (Results of residue level analysis).
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