May 4, 2021

Infection potential for Boxwood Blight in the next 48h – PROTECTANT fungicide applications should remain in effect

There is a potential for new boxwood blight infections today and tomorrow with the rain/humidity and higher temperatures

– Protective fungicide applications should remain in effect or be initiated immediately for Boxwood Blight (nursery and landscape settings) –

 

Boxwood Blight risk-model information, considerations, and links:

Boxwood Blight Risk Assessment as of 5/4/2021
Region Location CODE 3-May 4-May 5-May 6-May 7-May 8-May
Southern Upper Deerfield NJ50 Very Low  Infection Risk Infection Risk Very Low  Very Low  Very Low 
Central Howell / Freehold NJ10 Very Low  Low  Low  Very Low  Very Low  Very Low 
Northern High Point NJ59 Very Low  Very Low Low  Very Low  Very Low  Very Low 
Please check your local boxwood blight risk here (click here and type in your area code – select closest station)

 

  • These advisories are general in nature and change rapidly so someone from your business should be using this risk model (CLICK HERE) daily if boxwood is important to your financial stability – In 30 seconds you can have a better idea of boxwood blight (and other pathogen) activity in your immediate area!
    • (click on the link – input area code – select closest weather station – check 7-14 prediction – click on graph / table) 

Fungicides; 

  1. You very well may have these materials already applied as ‘cover-sprays’ – But – be mindful that protectant fungicides loose efficacy the more rain they are subjected to, and reapplication may be warranted.
  2. ROTATE between Fungicide Resistance Action Committee (FRAC codes) whenever possible

Format: [FRAC code]: Chemical name (Trade names)

  • [M05]: Chlorothalonil (Daconil WS)
  • [M05 + 1] Chlorothalonil + Thiophanate methyl (Spectro 90WDG)
  • [11] Trifloxystrobin + [7] Fluopyram  (Broadform)
  • [11] Trifloxystrobin + [3] Triadimefon (Armada 50WDG)
  • [M03] Mancozeb
  • [12] Fludioxonil (Medallion WDG)
  • [3] Tebuconazole (Torque)

 

DISCLAIMER: The label is the law, always refer to it for allowable host crops, use-restrictions, application rates, reapplication intervals, re-entry intervals (REI), and mix compatibility information. Production and pesticide information on this site are for private/commercial pesticide applicators and landscape professionals only, and are NOT for home gardener use. Provided materials represent examples and do not cover all possible control scenarios. Trade-names listed do not imply endorsement and are used as examples only. Please contact your local agent or chemical sales representative for more information or to discuss additional pest management options.

Resources 

Filed Under: Landscape, Nursery, & Turf, Nursery, Turf Tagged With: , , , , ,
March 4, 2021

Early Season Tree Fruit Pest Control in 2021

  • Dormant season oil sprays
  • Dormant season copper sprays
  • Dormant season urea sprays

[Read more…]

Filed Under: Tree Fruit Tagged With: , , , , , , ,
February 24, 2021

Tree Fruit Canker Removal and Scouting for Scale While Pruning.

Pruning fruit trees is an important horticultural practice that promotes proper tree vigor and canopy architecture for optimal fruit production. Generally the best time for dormant pruning pome fruit in the northeast is January through early March. Stone fruit, with the exception of sweet cherry, may be safely pruned as late as the delayed dormant and early bloom periods.

[Read more…]

Filed Under: Tree Fruit Tagged With: , , , , , ,
May 5, 2020

Tree Fruit IPM Report for May 5, 2020

 

Tree Fruit Phenology: Tree Fruit Phenology remains advanced, but development is slowing. In southern counties peach orchards are at Shuck Split to Shuck Off. Pears are past Petal Fall. Red Delicious was about Full Bloom on 4/25 and is late bloom/Petal Fall on May 4. Other varieties still have considerable bloom. Cherries are just past full Bloom. [Read more…]

Filed Under: Blueberry, Tree Fruit, Wine Grape Tagged With: , , , ,
April 27, 2020

Tree Fruit IPM Report for April 28, 2020

Disease Control in Freese Damaged Orchards: Dr. Lalancette has published his recommendations for how to protect tree fruit from diseases in freeze damaged orchards.

Tree Fruit Phenology: Tree Fruit Phenology remains advanced, but development is slowing. In southern counties peach orchards are at Shuck Split. We are now only about 5 days ahead of the median date for shuck split. Pears are late bloom/Petal Fall. Red Delicious was about Full Bloom on 4/25. Cherries are about full Bloom. [Read more…]

Filed Under: Tree Fruit Tagged With: , , , ,
April 20, 2020

Tree Fruit IPM Report for April 21, 2020

Evaluating Freeze Damage in Tree Fruit: The subfreezing temperatures on the morning of April 17 Caused injury at varying levels across the state. Lows ranged from 27-30 in southern counties. Much is the damage is now visible. Any physiological damage that is not visible now will appear as the season progresses. A helpful guide for evaluating fruit damage can be in the Intermountain Tree Fruit Production Guide.

Tree Fruit Phenology: Tree Fruit Phenology remains advanced, but development is slowing. In southern counties all peach orchards are late bloom to early Shuck Split. Redhaven was at approximately full bloom on March 30, and was at Petal Fall by April 14. Peach bloom has been very long this year. Plums are past shuck fall. Pears are late bloom/Petal Fall. Red Delicious is pink to 50% bloom. Cherries are at 50% bloom. [Read more…]

Filed Under: Tree Fruit Tagged With: , , , ,