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Help with ragweed control
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<blockquote data-quote="dcara" data-source="post: 247785" data-attributes="member: 473"><p>2,4-d is restricted here in texas for that exact reason. People not fully understanding spray issues that is, and then wipeing out a neighbors crop due to drift. However, you can still buy small diluted quantities of up to a pint withouit a license. I used PasturePro last year before I got an applicators license. It basically 2,4D in a pint bottle and hence didn't require a license to buy. Not knowing any better at the time I sprayed it in August (hot and dry) and still got about a 50% kill. Things you can do this late in the year to increase the effectiveness of your spraying is:</p><p></p><p>1) Spray the day after a rain. The plants/weeds have much better uptake then</p><p>2) Spray in the early moring provided there is no thermal inversion. Thermal inversions lead to drift issues.</p><p>3) Use an Amine formulation of 2,4-D which has lower volitization. This reduces evaporation which keeps the chemical on the weed longer and helps prevent drift issues. Do not use acetic formulation of 2,4D due to volitization and subsequent drift issue</p><p>4) Do not spray when temperature is over 80 degrees if humidity is less than 50%.</p><p>5) Ideal wind speed for spraying is 2 to 7 mph.</p><p>6) Use a surfactant</p><p></p><p></p><p>Here's some links on the subject for additional info</p><p></p><p><a href="http://www.bobkesslerceu.com/Classes/DriftPestSecure.PDF" target="_blank">http://www.bobkesslerceu.com/Classes/Dr ... Secure.PDF</a></p><p><a href="http://www.ext.colostate.edu/pubs/crops/00564.html" target="_blank">http://www.ext.colostate.edu/pubs/crops/00564.html</a></p><p><a href="http://www.for.gov.bc.ca/hfd/pubs/docs/Frh/Frh006.pdf" target="_blank">http://www.for.gov.bc.ca/hfd/pubs/docs/Frh/Frh006.pdf</a></p></blockquote><p></p>
[QUOTE="dcara, post: 247785, member: 473"] 2,4-d is restricted here in texas for that exact reason. People not fully understanding spray issues that is, and then wipeing out a neighbors crop due to drift. However, you can still buy small diluted quantities of up to a pint withouit a license. I used PasturePro last year before I got an applicators license. It basically 2,4D in a pint bottle and hence didn't require a license to buy. Not knowing any better at the time I sprayed it in August (hot and dry) and still got about a 50% kill. Things you can do this late in the year to increase the effectiveness of your spraying is: 1) Spray the day after a rain. The plants/weeds have much better uptake then 2) Spray in the early moring provided there is no thermal inversion. Thermal inversions lead to drift issues. 3) Use an Amine formulation of 2,4-D which has lower volitization. This reduces evaporation which keeps the chemical on the weed longer and helps prevent drift issues. Do not use acetic formulation of 2,4D due to volitization and subsequent drift issue 4) Do not spray when temperature is over 80 degrees if humidity is less than 50%. 5) Ideal wind speed for spraying is 2 to 7 mph. 6) Use a surfactant Here's some links on the subject for additional info [url=http://www.bobkesslerceu.com/Classes/DriftPestSecure.PDF]http://www.bobkesslerceu.com/Classes/Dr ... Secure.PDF[/url] [url=http://www.ext.colostate.edu/pubs/crops/00564.html]http://www.ext.colostate.edu/pubs/crops/00564.html[/url] [url=http://www.for.gov.bc.ca/hfd/pubs/docs/Frh/Frh006.pdf]http://www.for.gov.bc.ca/hfd/pubs/docs/Frh/Frh006.pdf[/url] [/QUOTE]
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