Open AccessINSECTICIDAL VERSUS NATURAL CONTROL OF WHITE WAX SCALE (GASCARDIA DESTRUCTOR) AT KENTHURST, N. S. W., DURING 1972–73
Author(s) -
Milne Wendy M.
Publication year - 1981
Publication title -
australian journal of entomology
Language(s) - English
Resource type - Journals
eISSN - 1440-6055
pISSN - 1326-6756
DOI - 10.1111/j.1440-6055.1981.tb01023.x
Subject(s) - biology , wax , white (mutation) , population , parasitism , scale (ratio) , natural population growth , destructor , botany , horticulture , ecology , demography , host (biology) , cartography , biochemistry , sociology , gene , geography , mite
On trees sprayed with white oil in January, 1973, the white wax scale population had completely died out by the end of March. The population persisted on unsprayed trees but at a very low level. By early June, 99.5% of the scales on the labelled units had died. High temperatures and parasitism by Anicetus communis (Annecke) appeared to be major mortality factors on unsprayed trees.