Iowa 3OT pesticide test study guide

During crawler emergence What treatment is the most effective in controlling scale insects with contract spray? Henbit What is the idenitity of a slump type weed with arrow shaped leaves? When leaf bud swells When should fungicide sprays first be applied to a crabapple tree to be most effective against apple scab? 1 inch on average how much water do woody ornamentals need each week during the growing season? 85 degree F Above what temperature should you NOT apply a hight volatile solution of 2-4B? Leaf petioles and Leaf distortion Phenoxy type herbicides like 2-4D and MCPP cause which type of damage when drifted on woody ornamental plants? Harm Natural enemy population Improperly time insecticide pesticide application for woody ornamentals pest can result in which of the following consequence? Monitoring Which of the following terms is described as a timely detection of problems to prevent significant plant injury by pests? small Why are spider mites difficult to detect on ornamental plants ? Immature state of wasps Saw flies are _________?