Pest Management Tender Fruit Uncategorized

Results of PMRA Review of Chlorothalonil for Tender Fruit

The PMRA has completed its review of products containing chlorothalonil (Bravo and Echo and any other formulations) for tender fruit. The label changes will take place by May, 2020. A summary of this review is provided below.

Cherries:

  • Limit on number of applications: 2 pre-harvest, 1 post harvest
  • Longer REI for thinning: 8 days 

Peach/nectarine:

  • Reduced number of applications per season: 2 pre-harvest, 1 post-harvest
  • Longer REI for thinning: 11 days

Crop

Maximum Application Rate Maximum Number of Applications per year Retreatment Interval (days) Activity REI (days)

Additional Instructions

Cherry (sweet and tart) 9 L BravoZN

4.4 kg Echo

2 pre-harvest

 

10 Thinning 8 Apply 1-2 applications from pink through shuck split.
7.2 L BravoZN

4 kg Echo

1 post-harvest       Apply once 1-7 days after fruit is removed.
Peach and nectarine 9 L BravoZN

4.4 kg Echo

2 spring 10 Thinning 11 Apply 1-2 applications from pink through shuck period.

DO NOT apply within 60 days of harvest.

DO NOT make more than 3 applications per year including a dormant spray.

All other activities 0.5
1 dormant       Apply one application per year as a fall dormant spray at 75-100% leaf

drop.

There are also some specific instructions regarding PPE and Vegetative Filter Strips

PPE for AIRBLAST application BravoZN

Wear coveralls over a long-sleeved shirt and long pants, chemical resistant gloves, socks and shoes during mixing, loading, clean-up, and repair activities. Wear a long sleeved-shirt, long pants, chemical resistant gloves, socks and shoes during application. Gloves are not required during application within a closed cab. Wear chemical-resistant gloves when leaving the cab for clean-up and repair.

In addition, wear chemical-resistant headgear during open cab airblast application. Chemical-resistant headgear includes Sou’Wester hat, chemical-resistant rain hat or large brimmed waterproof hat and hood with sufficient neck protection. If handling more than 122 kg a.i./day (244 L BravoZN), an applicator must wear a respirator with a NIOSH-approved organic vapour-removing cartridge with a prefilter approved for pesticides OR a NIOSH-approved canister approved for pesticides or use airblast equipment with an enclosed cab.

PPE for AIRBLAST application Echo DF

End-use products formulated as dry flowable (DF) and water dispersible granules (WDG) must be discontinued and reformulated in water-soluble packaging (WSP).

Wear coveralls over a long-sleeved shirt and long pants, chemical resistant gloves, socks and shoes during mixing, loading, clean-up, and repair activities. Wear a long sleeved-shirt, long pants, chemical resistant gloves, socks and shoes during application. Gloves are not required during application within a closed cab. In addition, wear chemical-resistant headgear during open cab airblast application. Chemical-resistant headgear includes Sou’Wester hat, chemical-resistant rain hat or large brimmed waterproof hat and hood with sufficient neck protection.

Vegetative Filter Strips

A Vegetative Filter Strip (VFS) of at least 10 metres wide must be constructed and maintained. The VFS is required between the field edge and adjacent, downhill aquatic habitats to reduce risk to aquatic organisms from run-off. Aquatic habitats include, but are not limited to, lakes, reservoirs, rivers, permanent streams, marshes or natural ponds, and estuaries. The VFS is to be composed of grasses and may also include shrubs, trees, or other vegetation. Additional guidance can be found on the PMRA Environmental Risk Mitigation webpages. Both VFS and spray drift buffer zones must be observed.

Results of PMRA review of chlorothalonil – PDF version

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