WNC Orchard Insect Pest Populations – July 19, 2022
go.ncsu.edu/readext?875618
en Español / em Português
El inglés es el idioma de control de esta página. En la medida en que haya algún conflicto entre la traducción al inglés y la traducción, el inglés prevalece.
Al hacer clic en el enlace de traducción se activa un servicio de traducción gratuito para convertir la página al español. Al igual que con cualquier traducción por Internet, la conversión no es sensible al contexto y puede que no traduzca el texto en su significado original. NC State Extension no garantiza la exactitud del texto traducido. Por favor, tenga en cuenta que algunas aplicaciones y/o servicios pueden no funcionar como se espera cuando se traducen.
Português
Inglês é o idioma de controle desta página. Na medida que haja algum conflito entre o texto original em Inglês e a tradução, o Inglês prevalece.
Ao clicar no link de tradução, um serviço gratuito de tradução será ativado para converter a página para o Português. Como em qualquer tradução pela internet, a conversão não é sensivel ao contexto e pode não ocorrer a tradução para o significado orginal. O serviço de Extensão da Carolina do Norte (NC State Extension) não garante a exatidão do texto traduzido. Por favor, observe que algumas funções ou serviços podem não funcionar como esperado após a tradução.
English
English is the controlling language of this page. To the extent there is any conflict between the English text and the translation, English controls.
Clicking on the translation link activates a free translation service to convert the page to Spanish. As with any Internet translation, the conversion is not context-sensitive and may not translate the text to its original meaning. NC State Extension does not guarantee the accuracy of the translated text. Please note that some applications and/or services may not function as expected when translated.
Collapse ▲
As has been the trend for season, codling moth populations remain low throughout the region, with about 31% egg hatch of the second generation complete in Henderson County, and essentially completed in Cleveland County. If codling moth has not been an issue in your orchard to date, it is highly unlikely to become so the remainder of the year. While oriental fruit moth (OFM) has been spotty, populations do tend to increase during August and September. However, in those regions where pyrethroids have been targeted on brown marmorated stink bug (BMSB), OFM will also be controlled.
First generation BMSB adult emergence has begun in Cleveland County and is about 20% complete, so now is an important time for protection of susceptible cultivars. While adult emergence has not yet begun in higher elevations such as Henderson, Wilkes and Haywood counties, recent studies have shown that ‘Granny Smith’ apples become highly attractive to surviving overwintered adults, and an insecticide application before July 30 is likely warranted in locations where populations are high or where there is a history of BMSB damage.
2022 Apple Field Day
Remember that Apple Field Day will occur on July 28 at the Mountain Horticultural Crops Research and Extension Center in Mills River. There are many good presentations scheduled and admission is free!
Learn more about southeastern apple insect pests at the Apple Insect Management page.
2022 Average Weekly Trap Captures
| HENDERSON COUNTY | |||
| Insects per trap | |||
| Jul 5 | Jul 11 | Jul 18 | |
| Codling moth | 0.0 | 0.5 | 2.0 |
| Oriental fruit moth | 17.0 | 10.0 | 14.5 |
| Tufted apple bud moth | 0.0 | 0.0 | 0.0 |
| Redbanded leafroller | 0.0 | 0.0 | 0.0 |
| Obliquebanded leafroller | 0.0 | 0.0 | 1.0 |
| Lesser appleworm | 0.0 | 0.0 | 2.0 |
| Apple maggot (abandoned and research orchards) | 0.0 | 0.0 | 0.0 |
| Brown marmorated stink bug (commercial) | 1.3 | 1.5 | 1.3 |
| Brown marmorated stink bug (unsprayed) | 2.5 | 1.0 | 2.0 |
| Spotted tentiform leafminer | 0.0 | 0.0 | 1.0 |
| Dogwood borer | 1.0 | 1.0 | 0.0 |
| Peachtree borer | 12.0 | 20.0 | 2.0 |
| Lesser peachtree borer | 41.0 | 45.0 | 3.0 |
| San Jose scale | 22.5 | 12.5 | 5.0 |
| Ambrosia beetle (all species) | 1.0 | 0.5 | 0.3 |
*Note that these averages illustrate only the timing of insect emergence and fluctuations in populations, and are not representative of population levels in any given orchard. The only way to have an accurate assessment of an individual orchard’s populations is to set up traps in that orchard.
2022 Accumulated Degree Days
| HENDERSON COUNTY | ||||
| Jul 5 | Jul 11 | Jul 18 | ||
| Codling moth (Biofix: April 22) | 1320 | 1478 | 1643 | |
| Oriental fruit moth (Biofix: April 12) | 1775 | 1963 | 2163 | |
| Tufted apple bud moth (Biofix: April 27) | 1577 | 1766 | 1965 | |
2022 Pest Trends (click to enlarge)
