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Avocado
> Year-Round IPM Program > Young
Trees > Exclude
Pests
Avocado
 Exclude
Invertebrate Pests—Young Trees
Prevent certain
pests from damaging
young trees by using physical barriers, pruning, and trunk treatments.
- Paint bark of young trees a light color to prevent sunburn, which
provides entry sites for borers.
- Apply Bordeaux mixture or
copper barriers to
trunks to exclude the brown garden snail.
- Apply barriers of
sticky material on
young trunks to exclude flightless pests such as
earwigs, ants, Fuller rose beetle, and false chinch bug nymphs.
For
example,
certain ants chew bark on young trees while others tend scales
and whiteflies, disturbing natural enemies that otherwise
biologically control these pests.
- Prune tree skirts as trees
mature to prevent access to trees by flightless invertebrates
and to reduce movement of fruit rot pathogen spores from soil
to
fruit.
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