APRD Survey

Dear Users:

We value your contribution to and use of the Arthropod Pesticide Resistance Database (APRD).

The APRD Team is conducting a Survey to gauge users experiences, our objective is to determine how the database enhances research, and to allow for users to provide feedback, suggestions and requests for potential improvements. Please take the anonymous survey using this link: Link to Survey

Thank you for your Participation,
David Mota-Sanchez
Arthropod Resistance Database Director

Reported Resistance Case(s)

Species: psylla pyricola

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

Active Ingredient: endosulfan

MOA: GABA-gated chloride channel antagonists, Cyclodiene organochlorines
Group: CYCLO	CAS #: 115297	Shaugnessy Code: 79401

Resistance Case(s)

Case Id	Year of Report	Type of Resistance	Location	Reference
G4339	1985	Field Evolved Resistance	USA-- Oregon	Follett, P. A., Croft, B. A. and Westigard, P. H. (1985). Regional resistance to insecticides in Psylla pyricola from pear orchards in Oregon.. Can. Entomol., 117 565-573.
G4242	1984	Field Evolved Resistance	USA-- Utah	Davis, D.W. (1984). Personal communication.
G3998	1981	Field Evolved Resistance	USA-- Washington	Kain, W.M. (1981). Personal communication.
G2612	1974	Field Evolved Resistance	USA-- Michigan	Howitt, A.J. (1974). Communication to FAO.

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

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