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Tables
- Table 1.
Phytotoxicity of ethrel and dikegulac and effectiveness in fruit removal on stressed and nonstressed trees.
Material ppm (a.i.) Product (oz/gal) Stressed trees Nonstressed trees Application Application Early Mid Late Early Mid Late Ethrel 500 1.6 Phytotoxic + ± + − − − Fruit removal ± ± ± ± ± ± 1000 3.2 Phytotoxic − ± + − − ± Fruit removal + + − + + + Dikegulac 4000 2.5 Phytotoxic − − ± − − − Fruit removal + + + + + + 8000 5.0 Phytotoxic − ± + ± ± ± Fruit removal + + + + + + 12000 7.5 Phytotoxic + + + + + + Fruit removal + + + + + + *Recommended rates are in boxes.
Material Concentration
(PPm)Toxicity and market availability Maintain CF125 150 - 600 Severe phytotoxicity and is currently off the market NPA 600 Severe phototoxicity and is off the market Atrinal 1000 - 3000 Toxic at higher rates; registered and available ppm (a.i.) Product (oz/gal) Atrinal 500 0.3 1000 0.6 1500 1.0 2250 1.5 3000 2.0
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