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How to Manage Pests

UC Pest Management Guidelines

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Avocado

When to Monitor Pests, Damage and Natural Enemies

(Reviewed 1/07, updated 1/07)

In this Guideline:

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
Grove Location  
Coast Inland PESTS JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
    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
 
 
 
 
 
 
 
 
 
 
 
 
+
+
 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
 
 
+
–
 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
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC

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
 
 
 
 
KEY TO PESTS 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  

PUBLICATION

[UC Peer Reviewed]

UC IPM Pest Management Guidelines: Avocado
UC ANR Publication 3436
General Information
P. A. Phillips, UC IPM Program, UC Cooperative Extension, Ventura County
B. A. Faber, UC Cooperative Extension, Santa Barbara/Ventura counties
J. G. Morse, Entomology, UC Riverside
M. S. Hoddle, Entomology, UC Riverside

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Statewide IPM Program, Agriculture and Natural Resources, University of California
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