They are here! Palmer Amaranth and Waterhemp are prevalent in MANY Knox County fields. One female plant can produce 1,000,000 seeds. If you find Palmer Amaranth or Waterhemp you should do whatever you can to prevent these devastating weeds from going to seed, including removing the entire plant from the field.
Continue to remain vigilant!
Click here for tips on identifying pigweed, palmer and waterhemp.
Corn
Growth & Development
Most of the corn that I have seen this week is in either the R3 (Milk) or the R4 (Dough) growth stage. Some of our early maturing hybrids have reached the R5 dent stage.
Scouting
Disease pressure throughout the county continues to be very low. Continue to scout for:
- Foliar diseases – Gray Leafspot, Tar Spot, Northern Corn Leaf Blight.
- Weed escapes (especially Palmer and Waterhemp).
Soybeans
Growth & Development
Most of the corn that I have seen this week is in the R6 (Full Seed) growth stage. Some of the early maturity beans are entering the R7 (Beginning Maturity) stage soon.
Scouting
Disease pressure throughout the county continues to be very low. As you continue to scout your bean fields, look for:
- Foliar diseases – Sudden Death Syndrome, White Mold, and Frogeye Leaf Spot.
- Insect feeding – Grasshoppers.
- Weed escapes (especially Palmer and Waterhemp).
County Rainfall Update
