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.
Barberry (Berberis) Disease Problems Anthracnose control - benomyl Leaf rust no chemical control Leaf spot, bacterial control - bordeaux mixture Leaf spot, fungal control - benomyl Mosaic no chemical control Twig blight, bacterial no chemical control Verticillium wilt no chemical control
Insect Problems Barberry aphids control - acephate, insecticidal soap
Barberry loopers (caterpillar) control - carbaryl, Bacillus thuringiensis, pyrethrum
Barberry scales control - adults: superior oil
crawlers: copper, carbaryl, acephate, pyrethrum Barberry webworms control - carbaryl, Bacillus thuringiensis, pyrethrum
