Take a look at your spray tips before you hit the field again. A few quick checks can help ensure all tips are operating unimpaired. Be sure all tips are spraying uniformly across the boom. Check to be certain all are calibrated correctly and uniformly.
Various species of stink bugs cause a range of crop damage. In soybeans, they typically do not produce damage enough to warrant treatment while soybeans are in the early reproductive stages.
Numerous cases of Frogeye leaf spot have been reported in fields of susceptible soybean varieties.
Trap counts often spike late in July as fall army worm moths take flight. Their larvae feed on crops causing defoliation and crop damage. With much of the crop going in late this year, AgVenture encourages growers to be on the lookout for the pest.
Numerous cases of Frogeye leaf spot have been reported in fields of susceptible soybean varieties. Circospora sojina is the fungus that infects leaves, stems and pods. Warm, humid and rainy conditions favor rapid development of infection.
Growing Degree Day (GDD) accumulations can help growers monitor stalk borer hatch and movement by using GDD accumulated with a developmental threshold of
Nitrogen (N) stress at any time in a corn plant’s growth and development subtracts from yield potential. Knowing how much N is available is critical to high-yield strategies.
The accumulation of Growing Degree Units (GDUs) is behind normal in many areas due to cooler and wetter conditions as compared to normal. In addition, in many areas, crops went into the ground much later than normal.
Gall midge is a relatively new soybean pest, and reports in the northern Cornbelt indicate early infestations, especially along border rows. Adult midges are small (2-3 mm in length) and have long antennae and hairy wings.
Waterhemp has begun rapidly establishing itself as soil temperatures rise. Many growers have already applied a pre-emerge herbicide.
Have you talked with your AgVenture Yield Specialist about the Maximum Profit System™ (MPS)?
With late planting occurring in many areas, growers are seeing seedcorn maggot feeding. They prefer decaying organic matter, but also feed on seeds and seedlings of soybeans and field corn.
Nitrogen (N) is the most commonly applied nutrient and one of the costliest inputs in corn production. N application averages 18% and 13% of the variable costs in a corn-corn and corn-soybean rotation, respectively.
When soybean fields are flooded, oxygen available for respiration is limited.
While the growing point is just at or below the soil surface (prior to V5-V6 stage), corn can only survive two to four days in totally saturated soil conditions.
The National Weather Service maps for May indicated sufficient to surplus soil moisture levels across most of the country’s corn and soybean growing regions.
Recent research shows that under good conditions, daily yield losses for soybeans are 0.3, 0.4, and 0.5 percent per day of planting delay for the first, second and third 10-day periods in May. Total yield loss potential mounts to roughly 15 percent by the end of the month.
Intense rainfall followed by warm and windy conditions tends to rapidly dry the surface of soils causing, in some cases, severe soil
crusting. When those conditions precede crop emergence, stand establishment can become compromised.
Uneven emergence, skips, doubles, and uneven spacing all reduce corn yield potential. The later a plant emerges relative to the plants next to it, the less that plant will contribute to overall yield. Those plants tend to stay behind throughout the season.