There was a time when selection of a fungicide for brown rot control was based solely on efficacy and cost of the product. However, the brown rot pathogen, Monilinia fructicola, has become resistant to DMI fungicides and to some extent QoI fungicides in many stone fruit growing regions in the eastern United States. This occurrence has underscored the need for a greater degree of integration of different fungicide chemistries as a resistance management strategy. [Read more…]
Tree Fruit Edition
Seasonal updates on insects, diseases, weeds, maturity dates and cultural practices impacting only tree fruit.
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July 3, 2013 Dean Polk, Dave Schmitt, and Atanas Atanassov
Fruit IPM Report: Week Ending 7/5/13
Fruit IPM Report 7-5-13 – Click to View | Download | Print
In this report:
- Peach
- Apple
- Grape
- Scouting Calendar
- Blueberry
- Trap Counts
BMSB Insecticide Options – Revised
We have developed a table outlining the recommended insecticides for BMSB and their use restrictions to aide growers in making management decisions. Please note that the table has been revised since its original publication.
June 25, 2013 Dean Polk, Dave Schmitt, and Atanas Atanassov
Fruit IPM Report: Week Ending 6/29/13
Fruit IPM Report 6-29-13 – Click to View | Download | Print
In this report:
- Peach
- Apple
- Grape
- Scouting Calendar
- Blueberry
- Trap Counts
June 25, 2013 Dave Schmitt
Brown Rot Found in Nectarines
Last week a block of Fantasia nectarines was found to have a very small percentage of rot present. This week several more blocks were found with rotten fruit present. The common denominator between the three is that they were all mid – late season nectarines that had been just thinned or were being thinned during the severe weather pattern we just experienced. Fruit were injured or the stems knocked loose from either heavy downpours or breaking up clusters. In one orchard many of the rotten fruit were dropping so it is likely the stem had been compromised. Any type of injury in these weather conditions can lead to rot infection.
So what should you do?
- Don’t panic! Fruit should have a high degree of resistance at this point. Only fruit injured in some way should be susceptible to rot;
- Maintain good coverage with a full rate of captan during periods of unstable weather;
- If possible, remove all the rotten fruit from the orchard canopy. Rotten fruit on the ground can be removed by discing where sod middles are not maintained.
June 18, 2013 Dean Polk, Dave Schmitt, and Atanas Atanassov
Fruit IPM Report: Week Ending 6/22/13
Fruit IPM Report 6-22-13 – Click to View | Download | Print
In this report:
- Peach: Oriental Fruit Moth; Tufted Apple Budmoth; Brown Rot
- Apple: Obliquebanded Leafroller; European Red Mites; Codling Moth
- Aphids: Spirea and Apple (green) Aphids
- Brown Marmorated Stink Bug
- Summer Diseases: Sooty Blotch and Fly Speck; White Rot and Black Rot; Anthracnose
- Pear: Pear Rust Mite
- Grapes: Grape Berry Moth
- Scouting Calendar
- Blueberry: Spotted Wing Drosophila; Oriental Beetle; Leafrollers and other Leps; Aphids; Putnam Scale; Cranberry Fruitworm; Blueberry Maggot
- Trap Counts
