|
| Weed Problem |
|
Chemical |
|
Pounds Active Ingredient (AI)/Acre |
|
Amount of Commercial Product/Acre |
|
Remarks and Limitations
Items in bold have changed since the printed bulletin.
|
|
| Preemergence annuals |
|
cycloate (RO-NEET 6E) |
|
3-4 |
|
2-3 qt |
|
Apply before planting. Incorporate 2-3 inches after spraying. Use lowest rate on sandy soils. Not effective on muck soils. |
|
| |
s-metolachlor (DUAL MAGNUM 7.6E) |
|
0.63-1.26 |
|
0.67-1.33 pt |
|
Apply to soil after seeding. Apply 0.5 inch irrigation to dry soil after application. Avoid use on soils with < 1.5% OM. Use high rate on muck soils with >20% OM. See: www.farmassist.com to obtain label. |
|
| Preemergence and postemergence |
|
ethofumesate (NORTRON 4SC) |
|
1.9 pre/0.16-0.33 post |
|
3.75 pt pre/5.25-10.5 fl oz post |
|
Apply to soil after seeding, or to beets with 2-8 leaves. Maximum of 6 pt/acre/year. Good control of lambsquarters, nightshades, smartweeds, mustards. |
|
| |
pyrazon (PYRAMIN 68DF) |
|
3.1-3.7 |
|
4.6-5.4 lb |
|
Apply from planting until weeds are 2 inches high. On muck soils, better control is obtained by spraying small weeds after beets have 2 true leaves. Include 1 qt COC/acre. |
|
| Postemergence broadleaves |
|
clopyralid (STINGER 3L) |
|
0.188 |
|
8 fl oz |
|
Apply before beets are 4 in. tall. Kills composite weeds and nightshade. 30-day PHI. |
|
| |
phenmedipham (SPIN-AID 1.3E) |
|
1 |
|
3 qt |
|
Apply after beets have 4 true leaves. Use no more than 22 gal spray solution per acre. Do not apply if beets are under any type of stress. See label for weeds controlled and precautions. Does not control redroot pigweed. 60-day PHI. |
|
| Postemergence grasses |
|
clethodim (SELECT MAX 0.97E) |
|
0.068-0.12 |
|
9-16 fl oz |
|
Apply to actively growing grasses. Maximum 64 fl oz/acre/year. Include 0.25% NIS/acre. 30-day PHI. |
|
| |
sethoxydim (POAST 1.5E) |
|
0.19-0.28 |
|
1-1.5 pt |
|
Apply to actively growing grasses. Use high rate on perennial grasses. Maximum of 3 pt/acre/year. Include 1 qt COC/acre. 60-day PHI. |
|
| Emerged annuals and perennials |
|
glyphosate (ROUNDUP 4L) |
|
2-3 |
|
2-3 qt |
|
Apply to emerged perennials before planting in the spring or after harvest in the fall. Check label for best time of year, stage of growth and rate for each weed. |