Evaluation of Representative California Spray Oils against Citrus Red Mite and California Red Scale1
- 31 March 1958
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Economic Entomology
- Vol. 51 (2) , 193-195
- https://doi.org/10.1093/jee/51.2.193
Abstract
Laboratory spray trials were conducted to determine LD-95 values for several representative California light-medium-grade and medium-grade foliage spray oils against citrus red mite (Panonychus citri (McG.)) eggs and adult female California red scale (Aonidiella aurantii (Mask)). Correlations of LD-95 values and physical-chemical properties of the oils are discussed. The results obtained lead to the following conclusions. The magnitude of the LD-95 of the oils that were most efficient against citrus red mite eggs is about half that of the LD-95 of the same oils against adult female red scale. The killing action of light-medium-grade and medium-grade California spray oils against citrus red mite eggs is associated with the highest boiling portion of the oil. Five of the 8 oils tested were more efficient against citrus red mite eggs and 7 of the 8 oils were less efficient against adult female California red scale than was expected on the basis of respective values for average molecular weight.This publication has 1 reference indexed in Scilit:
- Narrow-Cut Petroleum Fractions of Naphthenic and Paraffinic Composition for Control of California Red Scale1Journal of Economic Entomology, 1953