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Small spruce leaf wasp (Pristiphora abietina Christ. 1791) – contribution to the biology of pest in the view of newly damages

Abstract

Utvrđivanje bionomije i utjecaja štetnika smrekine ose listarice, Pristiphora abietina na zdravstveno stanje šumskih kultura smreke provedeno je u sastojinama Šumskoprivrednog područja „Ključko“. Istraživanjem su procjenji­va­ni i mjereni sljedeći parametri: početak, tok i kraj rojenja male smrekine ose listarice, biologija i tok nastajanja simptoma na napadnutim stablima smreke. Za ulov jedinki P. abietina korištene su žute, ljepljive, ploče. Svaka od serija za ulov imala je 10 ploča sa 20 ljepljivih površina. Ukupno je u 180 ljepljivih ploča, ulovljeno 2640 jedinki P. abietina, od toga 1903 mužjaka ili 72,1 % i 737 ženki ili 27,9%. Utvrđene su značajne štete uzrokovane ovim štetnikom na istraživanom području.Determining the impact of pest P. abietina on the health of the forest of spruce plantations was conducted in the area of ​​the Forest area „Ključko“ within the department „27“ forest management unit „Ošljak-Golaja“. Within the object of research assessed and measured the following parameters: the start, the course and the end of swarming of small spruce leaf wasp; biology of species; flux emergence of symptoms in the attacked trees spruce. To capture – catch specimens P. abietina were used yellow sticky traps for insects. Each series (18 series) had 10 with 20 traps sticky surface. A total of 180 used sticky traps. Caught a total of 2,640 individuals of P. abietina, of which 1,903 or 72.1% of males and 737 females, or 27.9%. This pest caused significant damage in this locality

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