Dry Edible Beans: Fusarium Seed and Root Rot (Fusarium solani f. sp. phaseoli)

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

Table of Contents

1. Integrated Pest Management Options
   • Seed Treatment
     • diazinon + captan + thiophanate-methyl – DCT
     • carbathiin + thiram – Vitaflo 280
     • fludioxonil + metalaxyl-M – Apron Maxx RTA
     • fludioxonil + metalaxyl-M – Apron Maxx RFC
     • thiamethoxam + metalaxyl-M + fludioxonil - Cruiser Maxx Beans
     • diazinon + captan – Agrox B-2
2. Related Links...

Integrated Pest Management Options

Fusarium begins as small, reddish-brown lesions on the taproot that join to form larger lesions, or streaks, as the plant ages. The lesion can extend up to the soil line. Splitting of the tap root, crown and lower stem often reveals a brown-reddish internal discoloration of the water-conducting tissue. Longitudinal cracks and adventitious roots may develop on damaged plants. These adventitious roots are formed above the damaged area. Late infection seldom results in dead plants but rather in stunted, unthrifty-looking ones. Disease development is promoted by soil compaction, short crop rotations and moisture stress.

Seed Treatment

Due to the threat of anthracnose infection to this crop, ALL edible bean seed should be treated with DCT or Dynasty 100FS. See ANTHRACNOSE (Colletotrichum lindemuthianum), opposite page for more details.

Comments
Due to the threat of anthracnose infection to this crop, ALL edible bean seed should be treated with DCT or Dynasty 100FS. Seedling blights and damping-off are also controled. Use full rate and ensure good coverage by applying as a slurry. Available in a 400-g container that will treat 77 kg of dry bean seed. To make slurry, use 520 g seed treatment/L of water. For control of pythium and phytophthora root rots, add metalaxyl.

Comments
Ensure good seed coverage.

Comments
For both commercial seed treatment plants and on-farm treatment using standard gravity or mist-type seed treatment equipment. Compatible with Rhizobium-based inoculants. Check with inoculant manufacturers prior to use. Ensure uniform coverage.

Comments
For commercial and on-farm application. Compatible with Rhizobium-based inoculants. Check with inoculant manufacturers for details prior to use. Do not graze or feed livestock on treated areas for 45 days after planting. For anthracnose control, tank-mix with 10 mL of Dynasty 100FS per 100 kg seed.

Comments
For commercial application only. Compatible with Rhizobium-based inoculants. Check with inoculant manufacturers for details prior to use. Do not graze or feed livestock on treated areas for 45 days after planting. For anthracnose control, tank-mix with 10 mL of Dynasty 100FS per 100 kg of seed.

Comments
Available in a 2-kg container that will treat 625 kg of bean seed. Use full rate and ensure good coverage of seed. Seed within 1 month of treatment. Do not use on seed already treated with an insecticide.

Related Links...

• Agronomy Guide for Field Crops - Publication 811
  • Dry Edible Beans: Fusarium Seed and Root Rot
• Diseases
• Dry Edible Beans