S. Mahunka szerk.: Folia Entomologica Hungarica 33/2. (Budapest, 1980)

Table 1. The characteristics of population dynamics for Hyphantria cunea Drury at station Gerla 1 s t generation 2nd generation Year Year number P number P 1963 52 0. 35 11 5 1. 29 1964 289 1. 95 150 1. 68 1965 112 0. 75 96 1. 08 1966 245 1. 65 19 0. 21 1967 103 0. 69 77 0. 86 1968 418 2. si 542 6. 08 1969 207 1. 39 55 0. 62 1970 220 1. 48 220 2. 47 1971 954 6. 42 76 0. 85 1972 70 0. 4 7 8 0. 09 1973 65 0. 44 278 3. 03 1974 not op e r a t e d not op e r a t e d 1975 76 0. 51 141 1. 58 1976 64 0. 43 60 0. 67 X g 148. 5 89.2 Table 2. The characteristics of population dynamics for Hyphantria cunea Drury at station Kunfehértó 1 St generation 2nd generation Year Year number P number P 1963 23 1 30 11 0. 50 1964 12 0 68 26 0. 93 1965 11 0 62 10 1.44 1966 3 0 17 4 0. 14 1967 34 1 93 28 1.01 1968 8 0 45 34 1. 22 1969 4 1) 23 32 1.15 1970 32 1 81 133 4. 73 1971 60 3 40 15 0. 54 1972 9 0 51 0 0. 00 1973 147 8 31 40 1.44 1974 36 2 04 24 0. 86 1975 not op e r a t e d 62 2. 23 X g 17. 6 27. Í