Reported Resistance Case(s)

Species: cacopsylla pyri

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

Active Ingredient: chlorpyrifos

MOA: Acetylcholine esterase inhibitors, Organophophates
Group: OP	CAS #: 2921882	Shaugnessy Code: 59101

Resistance Case(s)

Case Id	Year of Report	Type of Resistance	Location	Reference
G5552	1999	Unspecified	France-- Provence-Alpes-Cote D'Azur-- Avignon	Bues, R., J.F. Boudinhon, and F.F. D'Arcier. (1999). Geographic and seasonal variability of resistance to insecticides in Cacopsylla pyri L. (Hom., Psyllidae).. Journal of Applied Entomology, 123 289-297.

*The population was created solely by selection and/or genetic manipulation.
**The population was selected further in the laboratory after collection.