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Dry Edible Beans: Asian Soybean Rust (Phakopsora pachyrhizi)

Author: OMAFRA Staff
Creation Date: 04 July 2005
Last Reviewed: 15 June 2009
Pub 812: Field Crop Protection Guide > Chapter 5: Dry Edible Beans > Asian Soybean Rust

Excerpt from Chapter 5, Field Crop Protection Guide, Order this publication

Table of Contents

  1. Integrated Pest Management Options
  2. Related Links...

 

Integrated Pest Management Options

Edible beans are a host for Asian Soybean Rust. The extent to which these crops are impacted has yet to be determined. See ASIAN SOYBEAN RUST, (Phakopsora pachyrhizi), on page 25 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 Ontario Soybean Growers website (go to Related Links).

pyraclostrobin – Headline EC
Active ingredient pyraclostrobin
Trade name Headline EC
Rate per hectare (product)400-600 mL
Rate per acre (product) 160-240 mL

Comments
Ground and aerial application. Maximum of 2 applications per year. Classified as a strobilurin fungicide; use in a preventative fungicide program (pre-infection). See label for resistance management strategy. 7 days to harvest interval.

azoxystrobin - Quadris
Active ingredient azoxystrobin
Trade name Quadris
Rate per hectare (product)500 mL
Rate per acre (product) 200 mL

Comments
Ground and aerial application. Maximum of 2 applications per year. Classified as a strobilurin fungicide; use in a preventative fungicide program (pre-infection). See label for resistance management strategy. 15 days to harvest interval.

propiconazole - Tilt 250 E
Active ingredient propiconazole
Trade name Tilt 250 E
Rate per hectare (product)500-750 mL
Rate per acre (product) 200-300 mL

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. Maximum 2 applications per year. See label for resistance management strategy. 30 days to harvest interval.

azoxystrobin + propiconazole - Quilt
Active ingredient azoxystrobin + propiconazole
Trade name Quilt
Rate per hectare (product)1.0-1.5 L
Rate per acre (product) 400-600 mL

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 conditions persist. Good spray coverage and canopy penetration are important for best results. Apply in a minimum of 45 L of water/ha. Maximum 2 applications per year. See label for resistance management strategy. 30 days to harvest interval.

Related Links...

 

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