Dry Edible Beans: Asian Soybean Rust (Phakopsora pachyrhizi)


Pub 812: Field Crop Protection Guide > Chapter 5: Dry Edible Beans > Asian Soybean Rust

Field Crop Protection Guide 2011-2012, Order 2011-2012 publication

Table of Contents

  1. Integrated Pest Management Options
      • pyraclostrobin – Headline EC
      • azoxystrobin - Quadris
      • propiconazole - Tilt 250 E
      • azoxystrobin + propiconazole - Quilt
  2. Related Links...

 

Integrated Pest Management Options

Edible beans are a host for Asian Soybean soybean rust. The extent to which these crops are impacted has yet to be determined. See ASIAN SOYBEAN RUST, (Phakopsora pachyrhizi), on page 32 for more details on this disease. See the OMAFRA website at www.ontario.ca/crops for updates and further details on management options, as well as the Grain Farmers of Ontario website at www.gfo.ca/

 
Active ingredient pyraclostrobin
Trade name Headline EC
Rate per hectare (product) 400-600 mL
Rate per acre (product) 160-240 mL
PHI* 30
Comments Ground and aerial application. Classified as a strobilurin fungicide; use in a preventative fungicide program (pre-infection). See label for resistance management strategy. Maximum 2 applications/yr.

 

 
Active ingredient azoxystrobin
Trade name Quadris
Rate per hectare (product) 500 mL
Rate per acre (product) 200 mL
PHI* 15
Comments Ground and aerial application. Apply 1st application at early flower or when disease first appears. If necessary, re-apply 10-14 days later if disease persists. Maximum 2 applications/yr.

 

 
Active ingredient propiconazole
Trade name Tilt 250 E
Rate per hectare (product) 500-750 mL
Rate per acre (product) 200-300 mL
PHI* 30
Comments Ground and aerial application. Make first application at the first sign of disease followed by a second application 14 days after the first application, if environmental conditions are favourable for disease development. See label for resistance management strategy. Maximum 2 applications/yr.

 

 
Active ingredient azoxystrobin + propiconazole
Trade name Quilt
Rate per hectare (product) 1.0-1.5 L
Rate per acre (product) 400-600 mL
PHI* 30
Comments Ground and aerial application. Make the first application at the first sign of disease. Apply the high rate only under conditions of high disease pressures. A second application at a 14-day interval may be needed if disease persists. Good spray coverage and canopy penetration are important for best results. Apply in a minimum of 45 L of water/ha for ground application. See label for resistance management strategy. Maximum 2 applications/yr.

 


Related Links...

 


For more information:
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Local: (519) 826-4047
E-mail: ag.info.omafra@ontario.ca
Author: OMAFRA Staff
Creation Date: 2 May 2011
Last Reviewed: 19 May 2011