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Vol. 51—1997 - NorthEastern Weed Science Society

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24<br />

Table 1. Preemergence common lambsquarters and common ragweed control without<br />

triazines , rated 7 weeks after planting, and grain yield.<br />

Treatm nts Rate Timings CHEAL AMBEL Yield<br />

Ibai/A ----- % control ------- bu/A<br />

Broadst ike+Dual 1.68 PRE 100 60 147<br />

Frontier 0.82 PRE 10 50 121<br />

Surpas 1.0 PRE 50 70 143<br />

Topnot h 1.6 PRE 62 73 144<br />

Micro T ch 1.6 PRE 17 17 93<br />

Prowl 1.5 PRE 100 0 115<br />

Frontie 0.82 PRE 90 100 141<br />

Permit 0.016 POST<br />

Banvel 0.125 POST<br />

Surpas 1.0 PRE 93 100 156<br />

Permit 0.016 POST<br />

Banvel 0.125 POST<br />

Topnot h 1.6 PRE 94 100 168<br />

Permit 0.016 POST<br />

Banvel 0.125 POST<br />

Micro ch 1.6 PRE 91 100 149<br />

Permit 0.016 POST<br />

Banvel 0.125 POST<br />

Prowl 1.5 PRE 92 96 168<br />

Permit 0.016 POST<br />

Banvel 0.125 POST<br />

Prowl 1.5 PRE 100 80 146<br />

Topnot h 1.36 PRE<br />

<strong>Weed</strong>y check 0 0 38<br />

LSD (0 05) 15 20 18

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