The new Devrinol formulation, Devrinol DF-XT, is still a fifty percent dry flowable formulation, but includes UV (ultraviolet light) protection, so the product is no longer broken down on the soil surface by sunlight. [Read more…]
Fruit Crops Edition
Seasonal updates on diseases, insects, weeds impacting tree fruit and small fruit (blueberry, cranberry, and wine grape). Fruit Pest Alerts are also available via this category feed.
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June 11, 2013 Dean Polk, Dave Schmitt, and Atanas Atanassov
Fruit IPM Report: Week Ending 6/11/13
Fruit IPM Report 6-11-13 – Click to View | Download | Print
Grape Berry Moth Egg
In this report:
- Peach
- Apple
- Pear
- Wine Grape
- Scouting Calendar
- Blueberry
- Trap Counts
June 10, 2013 Cesar Rodriguez-Saona
On-Farm Research Results in Cranberry: Altacor
Rutgers Technician Robert Holdcraft
sweeping a cranberry bed.
Altacor is a new insecticide registered in cranberries. A few weeks ago we conducted an experiment to test the efficacy of Altacor® (DuPont) at 4.5 oz/acre against spotted fireworm larvae.
[Read more…]
June 5, 2013 Cesar Rodriguez-Saona
Blueberry Pest in Detail: Putnam Scale
Tape traps monitored on Tuesday, June 4 showed the start of crawler activity in the Hammonton area.
Maturing blueberries:
Circled areas show freshly settled scales.
Life History
Scales feed on plant sap, decreasing plant vigor and fruit yield. Adult scales are protected from insecticide sprays by a waxy covering. These insects are common in older canes when not removed, and located mostly under loose bark. In New Jersey, the Putnam scale has two generations a year. It overwinters as second-instar nymphs under loose bark. Spring activity begins in early February. Eggs from the first generation are laid in late April, and immature “crawlers” typically begin to appear in mid-May. Peak crawler emergences occur in late May and early June (this time of the year). Peak crawler emergences for the second generation occur in early to mid-August.
Monitoring and Management
Growers who had a scale problem last year can treat the first generation crawler stage now with Esteem (35W or .86EC, 7 day PHI), or wait until peak crawler emergence and use Diazinon (7 day PHI). Diazinon can only be used once in-season, and waiting until peak crawler emergence may put you too close to harvest, at least with early varieties. The second generation can be treated later in early August. Crawlers can be monitored by wrapping black electricians’ tape covered by double-sided sticky tape around canes. Use a hand lens to see crawlers on the sticky tape.
June 4, 2013 Dean Polk, Dave Schmitt, and Atanas Atanassov
Fruit IPM Report: Week Ending 6/3/13
Fruit IPM Report 6-3-13 – Click to View | Download | Print
Cicadas Emerge in Apple and Peach Orchards
In this report:
- Peach
- Apple
- Pear
- Wine Grape
- Scouting Calendar
- Blueberry
- Trap Counts
May 30, 2013 Anne Nielsen
BMSB in Peaches
Beginning last night at RAREC (south Jersey) BMSB began moving in ‘larger’ numbers into peach orchards. They immediately were observed mating. This occurred at about 284 DD (base 57°F) at RAREC. Degree-day accumulations were slow this year and last week were delayed by the rain and cooler weather.
In north Jersey the degree-day accumulation should occur today 5/30 or tomorrow 5/31 for the dispersal into fruit orchards. We advise that you monitor the woods edge of orchards for stink bug activity and treat if BMSB is found.
Plum curculio is still active throughout the state but should be approaching the end of oviposition activity in south Jersey. If PC pressure is high, chose a compound that has activity against both PC and BMSB such as Actara (5.5oz), permethrin (16oz.) or Warrior (5.12oz). We are between generations for OFM but Codling Moth timings are upon us (see Dean’s pest report) for north and south.
