|
|
January
|
|
|
Stage of Pecan Growth
|
Major Pests
|
Occasionally Control Needed For
|
|
Dormant
|
None
|
None
|
|
|
|
|
|
Maintenance
|
Propagation
|
Pest
Management
|
|
- Clean up limbs and debris.
- Thin trees if overcrowding is severe.
- Prune or
train trees.
- Remove damaged or unwanted limbs.
- Lime, zinc, phosphorus, or magnesium
may be applied.
More on
Pruning
|
- Collect and store graftwood.
- Dig trees
- Plant nuts
|
- Service light traps.
- Repair or construct weevil traps
|
|
|
February
|
|
|
Stage of Pecan Growth
|
Major Pests
|
Occasionally Control Needed For
|
|
Dormant
|
None
|
None
|
|
|
|
|
|
Maintenance
|
Propagation
|
Pest
Management
|
|
- Clean up limbs and debris.
- Thin trees if overcrowding is severe.
- Prune or train trees.
- Service and repair equipment.
- Plant trees.
|
- Collect and store graftwood.
- Whip graft.
- Plant nuts.
- Dig trees.
|
- Order pesticides.
|
|
|
March
|
|
|
Stage of Pecan Growth
|
Major Pests
|
Occasionally Control Needed For
|
|
Late dormancy to early budbreak
|
None
|
Scab, foliage disease, phylloxera,
hickory shoot
curculio
|
|
|
|
|
|
Maintenance
|
Propagation
|
Pest
Management
|
|
- Fertilize, according to last leaf and soil
analyses. Apply N and K; also
lime,
P, Mg, and Zn unless these were
applied previously.
- Finish pruning, training, thinning, and
planting.
- Apply foliar
zinc sprays if last year's
leaf analysis indicated need.
|
- Plant nuts.
- Whip graft.
- Spring bud
|
- Apply fungicide sprays at budbreak for
control of scab and foliage diseases.
- Treat trees with history of phylloxera or
hickory shoot curculio infestation at
budbreak.
|
|
|
April
|
|
|
Stage of Pecan Growth
|
Major Pests
|
Occasionally Control Needed For
|
|
Budbreak to early pollination
|
Scab, foliage diseases
|
Phylloxera, hickory shoot
curculio,
casebearers,
bud moth,
spittlebug,
aphids, May beetles
|
|
|
|
|
|
Maintenance
|
Propagation
|
Pest
Management
|
|
- Fertilize, according to last leaf and soil
analyses. Apply N and K; also
lime,
P, Mg, and Zn unless these were
applied previously.
- Keep orchards mowed.
- Continue foliar zinc sprays.
- Irrigate as needed.
|
- 4-flap graft.
- Bark graft.
|
- Apply pollination and 1st cover sprays
with fungicides at 14-day intervals.
Switch to 21-day interval between 1st
and 2nd cover spray.
- Spray for nut casebearer; 4- to 6-
percent of nut clusters may have eggs,
larvae, or damage.
|
|
|
May
|
|
|
Stage of Pecan Growth
|
Major Pests
|
Occasionally Control Needed For
|
|
Pollination to nut set; 1st nut drop
|
Scab, foliage diseases,
nut
casebearer
|
Aphids,
mites,
plant bugs,
spittlebugs,
webworms,
walnut caterpillar
|
|
|
|
|
|
Maintenance
|
Propagation
|
Pest
Management
|
|
- Keep orchards mowed.
- Continue foliar zinc sprays.
- Irrigate as needed.
|
- 4-flap graft.
- Bark graft.
|
- Apply pollination and 1st cover sprays
with fungicides at 14-day intervals.
Switch to 21-day interval between 1st
and 2nd cover spray.
- Spray for nut casebearer; 4- to 6
percent of nut clusters may have eggs,
larvae, or damage.
- Scout and spray as needed for
occasional pests listed above.
|
|
|
June
|
|
|
Stage of Pecan Growth
|
Major Pests
|
Occasionally Control Needed For
|
|
Early nut sizing; 2nd nut drop
|
Scab, foliage disease,
yellow
aphids, nut
casebearer
|
Black aphids,
mites,
hickory shuckworm,
leafminers,
plantbugs,
spittlebugs, bud moth, may beetles, leaf
and cigar casebearers,
nut curculio.
|
|
|
|
|
|
Maintenance
|
Propagation
|
Pest
Management
|
|
- Check for problems with pollination or fertilization
associated with 2nd nut drop.
- Irrigate as needed.
- Fertilize if you are splitting applications on young trees.
|
- None
|
- Spray fungicides at 3-week intervals.
- Scout for yellow aphids and spray when
they exceed 30 per compound leaf.
- Scout and spray as needed for nut
casebearer and occasional pests
listed
above.
- Begin operating hickory shuckworm
black light traps.
|
|
|
July
|
|
|
Stage of Pecan Growth
|
Major Pests
|
Occasionally Control Needed For
|
|
Nut sizing, water stage, early shell hardening, 3rd nut
drop
|
Scab, foliage diseases, pecan
weevil, hickory shuckworm
|
Nut curculio,
aphids,
mites, stinkbugs, leafminers,
casebearers,
spittlebug and bud moth
|
|
|
|
|
|
Maintenance
|
Propagation
|
Pest
Management
|
|
- Take leaf samples for nutrient
analysis. Soil samples may also be
taken.
- Irrigate as needed.
- Keep orchards closely mowed.
|
-
Patch bud
beginning lat July.
|
- Apply postemergence
herbicides if
needed.
- Spray fungicides at 3-week intervals.
- Monitor pecan weevils by traps or
knockdown sprays beginning late July.
- Scout and apply sprays needed for
occasional pests listed above.
|
|
|
August
|
|
|
Stage of Pecan Growth
|
Major Pests
|
Occasionally Control Needed For
|
|
Water-gel stage, shell hardening, early kernel filling,
4th nut drop
|
Pecan weevil,
hickory shuckworm,
yellow and
black aphids,
mites
|
Scab, foliage disease, stinkbugs, casebearers,
webworm, walnut caterpillar, bud moth, leafminers
|
|
|
|
|
|
Maintenance
|
Propagation
|
Pest
Management
|
|
- Irrigate as needed.
- Mow orchards.
- Late season fertilization
Additional information on
Hickory Shuckworm
Pecan weevils
Mechanical
nut thinning
|
-
Patch bud.
|
- Apply postemergence herbicides if
needed.
- Monitor pecan weevil and hickory
shuckworm traps closely.
- Check for aphid and mite infestations
which frequently build in late August,
especially following carbaryl or
synthetic pyrethroid sprays.
- Fungicide sprays may be needed.
- Scout and spray as needed for
occasional pests listed above.
|
|
|
September
|
|
|
Stage of Pecan Growth
|
Major Pests
|
Occasionally Control Needed For
|
|
Kernel filling
|
Yellow and black aphids, mites, pecan weevil, hickory shuckworm
|
Stinkbugs, casebearers, webworm,
walnut caterpillar,
bud moth, scab, foliage diseases
|
|
|
|
|
|
Maintenance
|
Propagation
|
Pest
Management
|
|
- Prepare for harvest: mow orchards; clean up debris;
service harvesting equipment.
|
-
Patch bud.
|
- Frequently the worst month for aphids
and mites; scout and spray as needed.
- continue monitoring closely for pecan
weevil and hickory shuckworm.
- Scout and spray for occasional pests
listed above.
|
|
|
October
|
|
|
Stage of Pecan Growth
|
Major Pests
|
Occasionally Control Needed For
|
|
Kernel filling, shucksplit,
early harvest
|
Mites, black aphids, birds, squirrels
|
Yellow aphids,
Pecan weevil,
hickory shuckworm,
stinkbugs
Additional information on
Hickory Shuckworm
Pecan weevils
|
|
|
|
|
|
Maintenance
|
Propagation
|
Pest
Management
|
|
- Early harvesting, or preparing for harvest, can be
done. Nuts may need mechanical drying.
- Market and promote crop.
- Continue irrigating.
- Applications of lime, zinc, phosphorus, and magnesium may be made in
fall.
- Prepare site and order trees for new planting.
|
|
- Applications of some herbicides may be made in fall.
- Mite and aphids build-up may justify sprays in
early
October to prevent early defoliation.
|
|
|
November
|
|
|
Stage of Pecan Growth
|
Major Pests
|
Occasionally Control Needed For
|
|
harvest, leaf fall, early dormancy
|
Squirrels, birds
|
None
|
|
|
|
|
|
Maintenance
|
Propagation
|
Pest
Management
|
|
- Harvest early for top quality and price.
- Don't let pecans lie on wet ground for
extended periods.
- Market and promote crop.
- Prepare site and order trees for new
plantings.
- Lime, zinc, phosphorus, and
magnesium can be applied.
|
- Collect and stratify nuts for planting.
|
- Use traps, scare guns, firearms, or other methods
to
reduce bird and squirrel damage.
- Observe leaves on Nov.1; trees have lost leaves
from aphid, downy spot,
or other damage, next year's
crop will be reduced.
- Practice sanitation by cleaning up and destroying
pops, shucks, leaves,
and limbs to reduce pest
problems.
|
|
|
December
|
|
|
Stage of Pecan Growth
|
Major Pests
|
Occasionally Control Needed For
|
|
Dormant
|
None
|
None
|
|
|
|
|
|
Maintenance
|
Propagation
|
Pest
Management
|
|
- Continue harvesting and marketing if not completed.
- Prune or train trees.
- Lime, zinc, phosphorus, and magnesium may be applied.
|
- Dig nursery trees.
|
|
