Our monitoring of codling moth (CM) continues as we approached egg hatch. Eggs usually begin to hatch about 220 DD after the first catch, and catches of adults in pheromone traps should be increasing as the weekend approaches. We applied our first CM spray on Tuesday and Wednesday nights at around 210 to 225 DD to get any eggs that had been laid covered. As we view our new NEWA Codling Moth Data Results, we will hit that 250 DD mark tonight.
 | |||||
| Royal Oak Farm Orchard Codling Moth Data for June 6, 2018 |
 |
| NEWA Rainwise Weather Station |
You
can now apply the first codling moth spray at this time and up through roughly 350 DD to prevent larvae
from entering the fruit. Because insecticide residues last 7 to 10 days
and moths are continuously present throughout the summer, apply a
spray every 7 to 10 days to prevent later broods of codling moth larvae
from entering apple and pear fruits. Always follow the label directions
of any spray you may use.
Several insecticides can be used for codling moth control including acetmaprid and/or spinosad.
Acetamiprid is a soft, conventional control and is available as Ortho
Flower, Fruit & Vegetable Insect Killer. This is a ready to use
product that contains .006% acetamiprid, and is also available in a
concentrate containing .5% acetamiprid, a synthetic organic compound of
the family of chemicals that acts as neonicotinoid insecticides.
Acetamiprid is a contact, translaminar insecticide for sucking-type
insects and can be applied as a foliar spray. Translaminar insecticides
are absorbed by leaves and can move through the leaf to the opposite
surface they contact. They are not truly systemic and do not move
throughout the plant. Acetamiprid acts on a broad spectrum of insects,
including aphids, thrips, plum curculio, apple maggot and Lepidoptera,
especially codling moth. When sprayed in the evening at sunset, it will
not harm bees or other beneficial insects. Be sure to follow all
label directions on the bottle for proper application.
An
all natural approach is available in the form of Bonide’s Captain
Jack’s Dead Bug Brew. Captain Jack's Deadbug Brew® contains Spinosad
(spin-OH-sid), a product first isolated from a naturally occurring soil
dwelling bacterium that was collected on a Caribbean island from an
abandoned rum distillery. Deadbug Brew® kills bagworms, borers,
beetles, caterpillars, codling moth, gypsy moth, loopers, leaf miners,
spider mites, tent caterpillars, thrips and more! Use on fruits,
vegetables, berries, citrus, grapes, nuts and ornamentals and approved
for organic gardening.
For additional information, see the following fact sheets which are available from local university extension services:
