Biological effect of pesticides spray for vegetable protection dependent on water quality
2001
Klokocar-Smit, Z. (Poljoprivredni fakultet, Novi Sad (Yugoslavia)) | Indjic, D. | Belic, S. | Mitar, M. | Petrov, M.
The change in physical traits of fungicide and insecticide sprays prepared in raw water decreased the tank life of sprays and restricted the choice of tank mix product partner. The pH has been increased, Mankogal-80 + Sucip 20-EC spray stability decreased, as well as the surface tension of all spray liquids except for the insecticide emulsion. The conductivity of everyone fungicide in raw water suspensions were increased, and the differences in between one fungicide and relevant admixture with insecticide suspension became bigger, especially during 24 h ageing. Mancozeb in Ridomil MZ 72 suspension at recommended and 50% diluted concentration in raw water decreased the germination of Alternaria alternata conidia less than the corresponding concentration in tap water. The decrease in mancozeb effect was obvious with Mankogal-80 spray suspension or its admixture with insecticide in raw water but with lower spray concentration (1/25, 1/10 of recommended). The phytotoxicity on tomato was induced by tank mix of Mankogal-80 + Sucip 20-EC in raw water.
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