Kozár, F., Brown, M.B., & Leitner, G. 1988 Frequency of pests and insects and in apple orchards [in West Virginia, U.S.A.]. Proceedings of the Symposium on Integrated Pest Management, Male Vozokane, Czechoslovakia September 1988: pp. 85-94.
Kozár, F., Brown, M.B., & Leitner, G. 1988 Frequency of pests and insects and in apple orchards [in West Virginia, U.S.A.]. Proceedings of the Symposium on Integrated Pest Management, Male Vozokane, Czechoslovakia September 1988: pp. 85-94.