Premium
Host tree influences on the dispersal of first instar gypsy moths, Lymantria dispar (L.)
Author(s) -
LANCE DAVID,
BARBOSA P.
Publication year - 1981
Publication title -
ecological entomology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.865
H-Index - 81
eISSN - 1365-2311
pISSN - 0307-6946
DOI - 10.1111/j.1365-2311.1981.tb00632.x
Subject(s) - lymantria dispar , gypsy moth , biological dispersal , biology , instar , host (biology) , larva , population , ecology , lepidoptera genitalia , zoology , demography , sociology
. 1. In laboratory tests, first instar gypsy moths attempted dispersal more frequency when exposed to less acceptable foliage. 2. First instars from small eggs attempted dispersal less frequently than larvae from large eggs when exposed to foliage from highly acceptable or marginally acceptable hosts. Dispersal rates of larvae from medium sized eggs were intermediate. 3. These results (1–2) confirm and expand upon the findings of Capinera & Barbosa (1976). 4. In the field, data on the relative densities of larvae on different host species support the conclusion that the frequency of dispersal attempts is inversely related to host acceptability. 5. The implications of these findings for the population dynamics of the gypsy moth are discussed.