Do Not Increase Plant Susceptibility To Problems Through
DO NOT INCREASE PLANT SUSCEPTIBILITY TO PROBLEMS THROUGH NEGLECT OR IMPROPER CARE. Additional information is in Extension bulletin E-1936, "Selecting Ornamental Plants" and
Extension bulletin E-1947, "Planting and Care of Ornamental Landscape Plants."
All plants can be affected by environmental and cultural problems. Only those occurring most frequently are listed here. Use pesticides only after an accurate diagnosis and control recommendation have been made. Use pesticides strictly in accordance with label directions. Always wear protective clothing and do not spray on windy days.
This list is for educational purposes only. Inclusion does not imply endorsement and omission does not imply discrimination. Not all of these pesticides are labeled or recommended in all states.
Redbud (Cercis) Disease Problems Canker no chemical control Dieback, fungal no chemical control Leaf spot, fungal control - benomyl Root rot no chemical control Scorch no chemical control Verticillium wilt no chemical control
Insect Problems Caterpillars control - diazinon, carbaryl, malathion, pyrethrum
Fall Webworms control - diazinon, carbaryl, malathion, pyrethrum, Bacillus thuringiensis Leafhoppers control - diazinon, malathion, pyrethrum
Scales control - adults: crawlers: diazinon, carbaryl, pyrethrum, malathion Controls reported to cause plant injury - acephate, pyrethrum
