Vol. 16—1962 - NorthEastern Weed Science Society

Vol. 16—1962 - NorthEastern Weed Science Society Vol. 16—1962 - NorthEastern Weed Science Society

08.06.2015 Views

354 " Cultivated Untreated '1'81)1.4., !'re.E ..... tlCeWe.d;;Colll.. ol in Corn jO; Iti:!ltKa1k,"n11n!",: 1 Control Control .... 'ti~.IA' , (Ac"tiiir·' .T' 2" 4, (3 cul~vations) Percent:.weed Control 3 WkttI ,; 5 lns.e• 81:-vs: .~ 56 90"--" .. 84 99 ex.o 90 ......- \l\., ~ ,_ o )L.:~ 0 Yield , ',Bu,s'A :,." 7 ··.~',94:~,::;,·.: Joll 101 '62 Clay :l,oam. Three replica~tons • weed species: annual lI1Orad.ng glory, smartweed, velvet leaf and Canada thistle. Table 5. Material Herbicide 326 " . " Hoed Check' . Untreated Control . Pre·Emergence Weed Control in Corn' " Du POnt WeaESh Bra 1;:!fm18rk,Delaware :,l',iC.' Rat~;Lb./A (Active) 0.75 :t-&Q' 3.;QQ, :"~;:Y,· 'L" Percent ~ ,Control· .; r~j.; Aftg',§"Weeks .Yiilld Grasses Broadleaves Bu./A 96 100 90 . ,•.99 . o'.lQO ..89 100',8,.' .100 84 9"595 80 ,0 ~. 0 42 " "'i ;.'-. :1\• , _' .. l(eyport;sil~,loam. Three-replications. ,:-Jiee.d'ispecies: c~_._ grass, rSg'Weed,smartweed, pigweed,' Japanese"millet and rape. Material Herbicicl.' " "Ii Table 6. 3.U: Hoed Check Untreated Control 0(,.:. Pre·Emergence ~ed Cont:IrQ1:in Corn Du Pont Research Farm· Raleigh, N.C. Percent 1o1eedControl After 4 ~eeks G Sl~.~~" J92, .J,' .~:: 98 ,

.s .... __ Table 7. Pre-Emel'ae~eWeed Coner.lin Soybeans Van Wert, Ohio 355 Rat~ Lb./A Percent Weed Control Material (Abttve) , 4 Wks. 6 Wks. Herbicide 326 1.0 66 73 " 2.0 97 96 4.0 99 97 Untreated Control o :0 I Brookston clay loam. Three replications .-Weed species: fo*tall, buttonweed, smartweed, bamya.rd grass, raS.ed and pigweed. So injury to soybeans. " .: . Table 8. Pre-Emergence Weed Cont~ in Soybeans Du Pont ~esearch Farm - Newark, Delaware Material Herbicide 326 " Hoed Check Untreated Control Rate Lb./A (ActiVer 0.5 1.0 1.5 Percent After Grasses W8edControl 4 Weeks Broadleaves 88 93 90 95 95 96 98 98 o . 0 Yield BU.,A 20 32 32 28 9 Keyport sllt loam. Three replications. Weed species: crabgrass, Japanese millet, rape, pigweed~ -horsenettle and purslane. Material Herbicide 326 " " " Untreated Table 9. Pre-Emergence Weed COfltrol in Soybeans Du Pont~search Farm -Raleigh. N.C. Control Rate Lb./A (AE!!ve 1 1.0 1.5 3.0 rcent Weed Control 3-1' ~:W1ts 5-1/2 Wks. 47 90 03 99 97 100 99 ... Norfolk sandy lo~m. 'Three repl,ications., ,~9y,~eans planted 1-1/2 inches deep. Weed species: crabgrass, foxtail, pigweed, lambs- _ ....... _ ... _ __ . ..2 __ .I ~ ...~_ ~_.1 __ ~ 'L. _

.s<br />

....<br />

__<br />

Table 7. Pre-Emel'ae~e<strong>Weed</strong> Coner.lin Soybeans<br />

Van Wert, Ohio<br />

355<br />

Rat~ Lb./A<br />

Percent <strong>Weed</strong> Control<br />

Material<br />

(Abttve)<br />

, 4 Wks. 6 Wks.<br />

Herbicide 326<br />

1.0<br />

66 73<br />

"<br />

2.0<br />

97 96<br />

4.0<br />

99 97<br />

Untreated Control<br />

o :0<br />

I<br />

Brookston clay loam. Three replications .-<strong>Weed</strong> species: fo*tall,<br />

buttonweed, smartweed, bamya.rd grass, raS.ed and pigweed. So<br />

injury to soybeans.<br />

" .: .<br />

Table 8. Pre-Emergence <strong>Weed</strong> Cont~ in Soybeans<br />

Du Pont ~esearch Farm - Newark, Delaware<br />

Material<br />

Herbicide 326<br />

"<br />

Hoed Check<br />

Untreated Control<br />

Rate Lb./A<br />

(ActiVer<br />

0.5<br />

1.0<br />

1.5<br />

Percent<br />

After<br />

Grasses<br />

W8edControl<br />

4 Weeks<br />

Broadleaves<br />

88 93<br />

90 95<br />

95 96<br />

98 98<br />

o . 0<br />

Yield<br />

BU.,A<br />

20<br />

32<br />

32<br />

28<br />

9<br />

Keyport sllt loam. Three replications. <strong>Weed</strong> species: crabgrass,<br />

Japanese millet, rape, pigweed~ -horsenettle and purslane.<br />

Material<br />

Herbicide 326<br />

"<br />

" "<br />

Untreated<br />

Table 9. Pre-Emergence <strong>Weed</strong> COfltrol in Soybeans<br />

Du Pont~search Farm -Raleigh. N.C.<br />

Control<br />

Rate Lb./A<br />

(AE!!ve 1<br />

1.0<br />

1.5<br />

3.0<br />

rcent<br />

<strong>Weed</strong> Control<br />

3-1' ~:W1ts 5-1/2 Wks.<br />

47<br />

90 03<br />

99 97<br />

100 99 ...<br />

Norfolk sandy lo~m. 'Three repl,ications., ,~9y,~eans planted 1-1/2<br />

inches deep. <strong>Weed</strong> species: crabgrass, foxtail, pigweed, lambs-<br />

_ ....... _ ... _ __ . ..2 __ .I ~<br />

...~_ ~_.1<br />

__ ~<br />

'L. _

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