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August 16, 2018

The Pest Management Regulatory Agency (PMRA) has announced the approval of a minor use label expansion registration for Delegate insecticide for suppression of peach tree borers on stone fruit, crop group 12-09 and for suppression of chestnut weevils and hazelnut weevils on tree nuts, crop group 14-11 in Canada. Delegate insecticide was already labeled for use on a wide variety of crops in Canada for control of several insects.

 

These minor use projects were submitted by Ontario as a result of minor use priorities established by growers and extension personnel. 

 

The following is an abbreviated, general outline only.  Users should be making pest management decisions within a robust integrated pest management program and should consult the complete label before using Delegate insecticide. 

 

Crop(s)

Target

Rate (grams per hectare)

Application Information

PHI (days)

Stone fruit, crop group 12-09*

Peach tree borer, lesser peach tree borer

420

Using a handgun or backpack sprayer, direct the spray to cover the tree trunk and scaffold limbs from ground level to 1.5 m above ground, particularly the graft union and any pruning cuts. Thorough coverage is essential.

 

Target the 1st instar larvae stage, beginning 7 to 10 days after first adult trap catch. Repeat applications at 14-21 day intervals.

 

Apply a maximum of three applications per year.

5 (cherries),

 

3 (plums, prunes, apricots),

 

1 (peaches, nectarines)

Tree nuts, crop
group 14-11**

Hazelnut weevil, large chestnut weevil, small chestnut weevil

420

Monitor trees and apply at the first sign of adult feeding damage. Repeat in 14 days if populations warrant. Apply a maximum of three applications per year.

14

*Stone fruit, CG 12-09 includes: apricot, Japanese apricot; black cherry; Nanking cherry; sweet cherry; tart cherry; Chinese jujube; nectarine, peach, plum, American plum; beach plum; Canada plum; cherry plum; Chickasaw plum; damson plum; Japanese plum; Klamath plum; prune plum; plumcot, sloe, cultivars, varieties, and hybrids of these commodities

**Tree nuts, CG 14-11 includes: almond, beech nut, butternut, chestnut, chinquapin, filbert (hazelnut), hickory nut, pecan and walnut

 

Delegate insecticide is toxic to bees exposed to direct treatment, drift or residues on blooming plants. Do not apply this product or allow it to drift to blooming plants if bees are visiting the treatment area. Delegate insecticide is also toxic to small wild mammals and certain beneficial insects.  Do not apply this product or allow drift to other crops or non-target areas or aquatic habitats when spraying or when cleaning and rinsing spray equipment or containers.

 

Follow all other precautions, restrictions and directions for use on the Delegate insecticide label carefully. 

 

For a copy of the new minor use labels contact your local crop specialist, regional supply outlet or visit the PMRA label site:  https://www.canada.ca/en/health-canada/services/consumer-product-safety/pesticides-pest-management/registrants-applicants/tools/pesticide-label-search.html

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Submitted by Jim Chaput on 16 August 2018