Carbaryl sprays and dusts
Type
Insecticide -- carbamate.
Plant uses
Ornamentals, fruit
trees, vegetables.
Pests controlled
Chewing insects such
as codling moth, earworms, grasshoppers, sawflies, flea beetles.
It can be effective as a trunk band against bark beetles, elm
leaf beetle, and some clearwinged
moths. It is mostly a stomach poison, not systemic and not
very effective against sucking insects, although it is used
against squash bugs. Do not use for spider mites.
 Hazards
to people
Low
to moderate toxicity; harmful if swallowed, inhaled,
in eyes or skin. |
 Hazards to wildlife and beneficials
Highly toxic to aquatic and estuarine invertebrates.
Carbaryl has been found in urban streams and creeks at toxic levels. Highly toxic to bees, parasites,
predators, and earthworms.
|
Potential period of activity after treatment
Moderately persistent; will continue to kill codling moth several weeks after application.
Precautions and safety equipment
Use only when genuinely needed. To protect bees, never use around
flowering plants. Do not use on plants with a history of spider mite problems as it may cause outbreaks
of mites and other pests. Wear rubber gloves and boots, eye protection, and long pants, a long-sleeved shirt,
and a hat that can be washed after each use.
Active ingredient
Carbaryl
(1-naphthyl N-methylcarbamate).
Application tips
Foliar sprays with emulsifiable concentrate
(EC) formulation:
Pests
are killed by consumption, so good coverage of consumed surfaces is required. Compressed air or backpack
sprayers are desirable for good coverage on trees; other sprayers are acceptable on smaller plants.
Squash
bugs
Apply dusts or sprays especially to the base of
plants when eggs are laid and bugs aggregate. Repeat application
about 2 weeks later. Do not apply to blossoms.
Trunk sprays
Purchase
a product labeled for bark treatments and apply at the rate
recommended for trunk treatments. Carbaryl applied at
foliar rates will not control borers. Timing is critical.
For elm leaf beetle, sprays must kill mature larvae as they
crawl down the trunk. For borers, sprays must kill adults
before they lay eggs and be applied to
cover the trunk, crotches, and lower limbs. Keep carbaryl
off foliage as much as possible to prevent killing natural
enemies and inducing mite problems. Keep sprinklers directed
away from the trunk to avoid washing
off the spray.
Check the label before purchasing or applying a pesticide for a specific pest on a specific
plant to be sure it can be applied. Follow all label directions.
WARNING
ON THE USE OF CHEMICALS |
