When to Monitor Pests, Damage, and Natural Enemies / Avocado / Agriculture: Pest Management Guidelines / UC Statewide IPM Program (UC IPM)

TIME OF YEAR			JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
CROP DEVELOPMENT STAGE
Older fruit development or presence
Young fruit development
Pollination and fruit set
Pre–bloom and open flower
Leaf flush
PESTS
DISEASES			m	m	m	m	m	m	m	m	m	m	m	m	m	m	m	m	m	m	m	m	m	m	m	m
VERTEBRATES			o	o	o	o	m	m	m	m	m	m	m	m	m	m	m	m	m	m	m	m	o	o	o	o
WEEDS				m	m	m	o	o	o	o	m	m	m	o	o	o	o	o	o	o	o	o	o	o
INVERTEBRATES
INVERTEBRATES	Coast	Inland
Avocado thrips	+	+			o	o	o	m	m	m	m	m	m	o
Persea mite	+	+							m	m	m	m	m	m	m	m	m	m	m	m	m	o	o
Caterpillars	–	–						m	m	m	m	m	m	m	m	m	m	m	m	o	o
Greenhouse thrips	+	–						m	m	m	m	m	m	m	m	m	o	o	o	o	o	o	o	o	o	o
Sixspotted mite	+	–					m	m	m	m	m	m	m	o	o	o	o	o
Avocado brown mite	+	–													o	o	m	m	m	m	m	m	m	o
Avocado lace bug	+	+								m	m	m	m	m	m	m	m	m	m	m	m	o	o
Ants & Homoptera	–	–				o	m	m	m	m	o	o	o	o	o
Pests that migrate to young trees	+	+						o	o	o	m	m	m	m	m	o
Glassy-winged sharpshooter	–	–											o	o	m	m	m	m	m	o	o
NATURAL ENEMIES
Predatory thrips							o	m	m	m	m	m	m	o
Predatory mites							o	m	m	m	m	m	o
Spider mite destroyer							o	m	m	m	m	m	o			o	m	m	m	m	m	m
Greenhouse thrips parasites								m	m	m	m	o	o	o	o	o	o	o
Caterpillar pathogens, parasites, & predators								m	m	m	m	m	m	m	m	m	m	m	m

LEGEND TO MONITORING PESTS, DAMAGE AND NATURAL ENEMIES
+	=	monitor routinely, commonly a pest
–	=	routine monitoring probably warranted only in special circumstances, such as when a species recently was a pest there or when natural enemies have been disrupted, e.g., by broad-spectrum insecticide application
	=	shading indicates period of potential for damage
	=	shading indicates period damage most likely
m	=	major times to monitor
o	=	other times to monitor

When to Monitor Pests, Damage, and Natural Enemies