losses and detract from the appearance of the processed product. The occurrence of scab and its severity varies by season and from field to field. Cropping history, soil moisture, and soil texture are largely responsible for this variability. Potato scab...

. The disease can be a major production problem. Yields are reduced because of a decrease in the size or number of fruit, or a shortened harvest period. Premature senescence of infected leaves can result in lower market quality because fruit become sunburned...

of the western United States. Since moisture is required by these pathogens for reproduction and spread, seeds are more likely to become contaminated with bacteria when seed production fields have been exposed to summer thunderstorms, cool autumn temperatures...
, follow a minimum 2-year rotation out of beans. Good rotation will also help reduce buildup of root-rotting organisms, white and gray molds, and anthracnose. Chemical Control Seed treatment with the antibiotic streptomycin can help reduce contamination...

as required. When powdery-mil dew-resistant (PMR) cucurbits are released, the losses from black rot may be reduced. Anthracnose Although this disease is more often a foliar and fruit-infecting problem for watermelon and muskmelon, the organism can also infect...
-60 50 50-70 50-70 60 60 50-70 60 60 60-70 50-70 8-12 weeks Varies with variety 4 weeks 4-7 weeks 13 weeks 7 weeks 8-11 weeks* 27 weeks 13 weeks *Storage for 4 months or more is possible if all production, curing, and storage recommendations...

, bottom) Howden, Baby Pam, and Spirit pumpkins. �The organism is also thought to exist as races. Fusarium crown and foot rot of squash was first described from South Africa in 1932. In 1939, widespread reports were received from New York, Connecticu t...
with soil Causal Organism Fusarium crown and foot rot is caused by F. solani f. sp. cucurbitae. Two races have been described. Race 1 causes a root, stem, and fruit rot. It occurs worldwide and is responsible for the disease in New York. Race 2 causes only...