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Reported Resistance Case(s)

Species: psylla pyricola

Order Family Common Name(s) Group Host
homoptera psyllidae pear psylla AG pear

Active Ingredient: dieldrin

MOA: GABA-gated chloride channel antagonists, Cyclodiene organochlorines
Group: CYCLO CAS #: 60-57-1 Shaugnessy Code: 45001

Resistance Case(s)

Case Id Year of Report Type of Resistance Location Reference
G2065 1972 Field Evolved Resistance
USA--
Oregon
Westigard, P. H. and Zwick, R. W. (1972). The pear psylla in Oregon.. Oreg. State Univ. Agric. Stn. Tech. Bull. 122, 22 pp..
G198 1959 Field Evolved Resistance
USA--
Washington
Harries, F. H. and Burts, E. (1959). Laboratory studies of pear psyllas resistant to dieldrin and some related compounds.. J. Econ. Entomol., 52 530.
*The population was created solely by selection and/or genetic manipulation.
**The population was selected further in the laboratory after collection.