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5189446 
Technical Report 
Effect of pesticides on the quality of strawberries 
Cheng, BT 
1989 
27 
3 
373-378 
English 
BIOSIS COPYRIGHT: BIOL ABS. Following farmers' complaints, tests were conducted to determine possible effect of pesticides and herbicides on strawberry (Fragaria sp. cv. Redcoat) fruit quality and on other parameters associated with plants. Various pesticides and herbicides were applied at recommended frequencies and amounts to the soil in question. The fungicides Thiodan and Guthion applied at midbloom gave malform fruit; normal development results from application before or after this. The herbicide Sinbar severely suppressed plant growth and fruit production, possibly due to Fe and and Cu toxicity. All pesticides except Sinbar, gave lower NO3-N soil content. Generally pesticides lowered N, P, K, Mn and Zn content, but raised Mo content of the plant tissue; this may result from organo-mineral compound formation accompanying pesticide uptake. Pesticide treatments decreased Mno, Cu/Mo and Zn/Mo in the leaves; however Fe/Mn increased. Despite a wide variation in soil Mn, CU, Fe and Mo content, diff