Reported Resistance Case(s)

Species: metaseiulus occidentalis

Order	Family	Common Name(s)	Group	Host
acari	phytoseiidae	western predatory mite	PAR	mites

Active Ingredient: sulfur

MOA: Unknown Mode of Action (general), Undetermined MOA
Group: INORG	CAS #: 7704-34-9	Shaugnessy Code: 77501

Resistance Case(s)

Case Id	Year of Report	Type of Resistance	Location	Reference
G3926	1981	Field Evolved Resistance	USA-- California	Hoy, M. A. and Standow, K. A. (1981). Restistance to sulfur in a vineyard spider mite predator.. Calif. Agric., 35 8-10.

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