Commercial Disease Controls
The Pennsylvania State University
Cooperative Extension

Peas

Seed Treatment

Use seed already treated with an approved seed treatment, or treat seed with a slurry or dust that contains an approved commercial fungicide-diazinon mixture. For disease control, use seed treated with Maxim 4FS (0.08-0.16 fl. oz/100 lb seed) for Rhizoctonia & Fusarium control and Apron XL LS (0.16 to 0.64 fl.oz/100 lb seed for Pythium control.

Disease Control

White Mold
Preplant: The following biological fungicide has been tested in some states; however, limited information is available on effectiveness in the Mid-Atlantic region. Apply 3-4 months prior to the onset of disease to allow the active ingredient to reduce the inoculum levels of sclerotia in the soil. Following application, incorporate to a depth of 1 to 2 inches but do not plow before seeding beans to avoid untreated sclerotia in lower soil layers from infesting the upper soil layer.

Contans--2-4 lb 5.3WG/A

Fusarium Wilt
Use resistant varieties.

Damping-Off and Root Rot
Rotate to allow 4 to 5 years between pea plantings. Do not double crop with any type of bean. For damping-off and root rot caused by Pythium, apply the following as a broadcast treatment at seeding.

Ridomil Gold--O.5-1 Pt 4E/A(Pythium only) or
azoxystrobin (Amistar at 0.125-0.25 fl oz 80WDG/1000 ft of row or Quadris at 0.4-0.8 fl oz 2.08F/1000 ft of row).

Viruses
Use resistant varieties when possible and control aphids.

Bacterial Blight
Plant clean seed and use resistant varieties. Avoid walking through fields when vines are wet.

Ascochyta Blight
Use fungicide treated seed. Follow a crop rotation scheme that provides at least 2 years without peas. Deeply incorporate crop debris immediately after harvest before the fungus can be dispersed by wind or rain. In fields with a history of blight apply preventatively:

azoxystrobin (Quadris--6.2 - 15.4 oz 2.08F/A or Amistar--2-5 oz 80WDG/A, or
Headline--6-9 fl oz 2.1IEC/A

Note: Where trade names are used, no discrimination is intended and no endorsement by the Cooperative Extension Service is implied. Information provided is intended for consideration by the user, but is not intended to be a recommendation. Production decisions should be based on consideration of many types of information (scientific, experiential, economic, legal, etc.) available to the user.