Southeastern Apple Production
ENTOMOLOGY
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Southeastern Apple ProductionENTOMOLOGY |
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Codling moth populations have remained stable across Henderson County during the past week, with the overall trap capture average increasing only from 9.1 to 10.4 moths per trap. Based on Degree Day accumulations and weather forecasts, codling moth could remain a threat for a couple more weeks. In Polk County, however, first generation flight should be essentially completed.
Tufted apple bud moth populations in Henderson County are now at the stage where a single application of insecticide (Altacor, Delegate or Intrepid) will control the first generation. This window of opportunity will remain open for the next two weeks.
Oriental fruit moth trap captures increased slightly over the past week, and this probably represents the very early stages of second generation adult emergence. Second-generation populations are generally quite low and special sprays are not necessary. In addition, insecticides applied for codling moth or TABM will serve to further suppress OFM.
Secondary pests (aphids, leafhoppers and mites) remain low in sample orchards. Green apple aphids are just beginning to appear, but biological control agents (lady beetles, lacewings, syrphid flies) should help keep populations at low levels. It is still early for potato leafhoppers and mites.
| Location | Orchard Type | Codling Moth | Oriental Fruit Moth | Tufted Apple Bud Moth | Red-banded Leafroller | Lesser Apple-worm | Oblique-banded Leafroller |
Apple Maggot | Spotted Tentiform Leafminer | Dogwood Borer | Peachtree Borer | Lesser Peachtree Borer | Brown Marmorated Stink Bug |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Henderson County, NC | Average of all scouted orchards | 10.4 | 0.2 | 82.5 | 1.0 | 0.0 | 0.8 | 0.0 | - | ||||
| Polk County, NC | Average of all scouted orchards | 1.5 | 0.7 | 9.0 | 1.0 | 0.0 | 2.0 | 0.0 | - | ||||
| Research
Station, Mills River, NC |
Research Orchard | 9.5 | 3.0 | 74.0 | 0.0 | 4.0 | 5.0 | 0.0 | 33.0 | 106.0 | 9.0 | 64.0 | - |
| County | Codling
Moth |
Oriental
Fruit Moth |
Tufted
Apple Bud Moth |
|---|---|---|---|
| Henderson County | 566 | 1063 | 775 |
| Polk County | 841 | 1504 | 1087 |
| County | Codling Moth |
Oriental Fruit Moth |
Tufted
Apple Bud Moth |
|---|---|---|---|
| Henderson County | April 2 | March 16 | April 2 |
| Polk County | March 29 | March 7 | March 29 |
Recommendations for the use of agricultural chemicals are included in this publication as a convenience to the reader. The use of brand names and any mention or listing of commercial products or services in this publication does not imply endorsement by North Carolina Cooperative Extension nor discrimination against similar products or services not mentioned. Individuals who use agricultural chemicals are responsible for ensuring that the intended use complies with current regulations and conforms to the product label. Be sure to obtain current information about usage regulations and examine a current product label before applying any chemical. For assistance, contact your county Cooperative Extension agent.
Southeastern Apple Production
Mountain
Horticultural Crops Research & Extension
Center
455 Research Drive
Mills River, NC 28759
Phone: 828.684.3562 ~ Fax: 828.684.8715
Email: jim_walgenbach@ncsu.edu
Web Crafters: Anne S. Napier and
Steve Schoof
Email:
steve_schoof@ncsu.edu