Abstract:Two separate tests were conducted to evaluate Ortho Volck Oil Spray and Volck Spray + Diazinon 25EC at 3 different rates for phytotoxicity on 3 species of ornamentals. It involved treatment of 3 different types of field grown nursery stock that were located on a horticulture research farm outside of Stillwater. Treatments were made with a 2 gal B&G compressed air sprayer at approximately 20 psi. All plants were treated to run-off. The check plants were treated with water to run-off. Test 1 was applied on J… Show more
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