During the Growing Season

Pesticides

Cutworms may be the only real concern as a low level of cutworms can result in considerable plant stand reduction. Use normal control methods such as Lorsban.

Herbicides

Non-GMO varieties are a fairly Non-competitive crop. Recommends applications include:

Edge/Treflan
Select/Post/Assure
Pinnacle
Basagran (very expensive)
Reflex
Odessey & Pursuit

Note: with all non-GMO varieties you should avoid fields with Canada or Sow Thistles, Dandelions and Kochia.
Roundup Ready varieties allow the application of Roundup directly to the field after seeding.

Spraying a Conventional Soybean

Best crop safety time to spray is between the 2nd & 3rd trifoliate. Avoid tank mixes when possible. Avoid cool spraying conditions with some herbicides.

Spraying a RR Variety Soybean

Virtually no restrictions as to when & how much you can apply. Normally there is no need to go over 1 ½ L to 2L per acre (normal rates of ½ L/Ac are used at least 2 times during the season).

Plant Diseases

Iron Chlorosis

Iron Chlorosis is an iron deficiency caused by high calcium carbonate & soluable salt levels in the soil, not allowing the plant to absorb the iron.

This in turn causes a yellowing of the plant & a decrease in the disease resistance and lowering yields.

OUR VARIETIES HAVE THE BEST IRON CHLOROSIS RESISTANCE CURRENTLY ON THE MARKET

Phytophthora Root Rot

Not common in this area but has been found in crops in mid-southern North Dakota, phytophthora is a fungus that attacks the root and stem of the plant in the early stages. Substantial yield loss can occur if infected.

Sclerotinia

Also a fungus caused disease, sclerotinia attacks stem, leaf and pods creating a white mycelial (fungus threads) growth on the plant and cause plant decay. Affective crop rotation with plant not susceptible to sclerotinia can reduce effects. Avoid fields with plant species that carry sclerotina such as sunflower, canola and alfalfa. The reality is that soybeans have a relatively low susceptibility to sclerotinia.