DATCP cooperators maintain pheromone traps in their orchards to monitor the seasonal activity of economically important apple pests. Data from insect traps is integral to orchard integrated pest management programs and contributes to reduced damage and pesticide use. Insects currently monitored include apple maggot, codling moth, dogwood borer, lesser peachtree borer, redbanded leafroller, obliquebanded leafroller and spotted tentiform leafminer. The results are presented below and will be updated weekly through August.
Counts for the Week Ending September 2, 2021
| County | Location | Cm | Dwb | Lptb | Oblr | Rblr | Stlm | AM Red | Am yellow |
| Bayfield | Keystone | 0 | 0 | 0 | 1 | 0 | 14 | 3 | 4 |
| Bayfield | Orienta | 0 | 0 | 0 | 0 | 0 | | 0 | 0 |
| Brown | Oneida |
| | | | | | | |
| Columbia | Rio | | | | | | | | |
| Crawford | Gays Mills | | | | | | | | |
| Dane | Deforest | | | | | | | | |
| Dane | Mt. Horeb | 0 | 1 | 0 | 0 | 59 | 15 | 0 | 0 |
| Dane | Stoughton | 0 | | 4 | 8 | 10 | 2 | 2 | |
| Fond du Lac | Campbellsport | 0 | 0 | 0 | 4 | 15 | 45 | 0 | 0 |
| Fond du Lac | Malone | | | | | | | | |
| Fond du Lac | Rosendale | 3 | 0 | 1 | 28 | 56 | 21 | 0 | 0 |
| Green | Brodhead | | | | | | | | |
| Iowa | Mineral Point | 9 | 0 | 0 | 0 | 49 | 36 | 2 | *0 |
| Jackson | Hixton | 0 MD | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Kenosha | Burlington | 2 | 30 | 2 | 3 | 146 | 450 | 0 | 0 |
| Lafayette | Belmont | 1 MD | | 0 | 0 | 126 | 3 | | |
| Marathon | Edgar | | | | | | | | |
| Marinette | Niagara | 0 MD | 0 | 0 | 1 | 0 | 86 | 0 | 0 |
| Marquette | Montello | 0 | 0 | 0 | 1 | 53 | 32 | 0 | 0 |
| Ozaukee | Mequon | 0 MD | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
| Pierce | Spring Valley | 0 MD | 2 | 1 | 0 | 75 | 34 | 0 | *1 |
| Racine | Raymond | 11 | 12 | 1 | 36 | 112 | 65 | 0 | 0 |
| Racine | Rochester | 2 | 0 | 2 | 1 | 43 | 3 | 0 | 0 |
| Richland | Hillpoint | | | | | | | | |
| Sheboygan | Plymouth | | | | | | | | |
| Walworth | East Troy | | | | | | | | |
| Walworth | Elkhorn | | | | | | | | |
| Waukesha | New Berlin | 2 | 15 | 0 | 2 | 0 | 50 | 0 | 0 |
Key to insects: Cm = codling moth; Dwb = dogwood borer; Lptb = lesser peachtree borer; Oblr = obliquebanded leafroller; Rblr = redbanded leafroller; Stlm = spotted tentiform leafminer; AM red = apple maggot red ball; *baited with ammonium lure; AM yellow = apple maggot yellow sticky board; MD = mating disruption.
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