Concord grapes can tolerate these diseases with minimal control but other varieties need more frequent fungicide treatment. Contact your local extension office for information on appropriate pesticides for specific problems. Some varieties of grape can be grown in New York using organic growing techniques. Your local extension office can assist you in selecting organic fertilizers and pesticides. With many grapes, birds and raccoons need to be controlled as the grapes ripen.
Netting is an excellent way of controlling birds.
Interestingly, birds do not bother Concord grapes. If netting is required for your grapes, you may be able to use the net earlier in the season on other crops and make its purchase economical. Raccoons, skunks and opossums love grapes. It is not reasonable to assume that you could grow enough grapes to fill them. Weeds are difficult to control but any weeds within several feet of the vine must be removed.