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johnsongrass summer advice
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<blockquote data-quote="pdubdo" data-source="post: 1511020" data-attributes="member: 24024"><p>Interesting thread. I called the Noble foundation and here were their main points:</p><p>1. Fear of toxicity is high, but reports of actual kills are rare (someone already said this here)</p><p>2. Danger is in the new growth (prussic acid) and bottom of stalk (nitrates). So growth AFTER drought (first rainfall), summer mowing, or non-killing freeze results in higher concentrations. </p><p>3. Herbicide application results in higher prussic acid concentrations for up to a couple of weeks (I'm assuming that's if you get an incomplete kill, stress the plant, and it starts regrowing from the rhizomes?)</p><p></p><p>So I'm gonna graze away, not stress too much this summer, and pray I don't post pictures of dead cows in August!</p></blockquote><p></p>
[QUOTE="pdubdo, post: 1511020, member: 24024"] Interesting thread. I called the Noble foundation and here were their main points: 1. Fear of toxicity is high, but reports of actual kills are rare (someone already said this here) 2. Danger is in the new growth (prussic acid) and bottom of stalk (nitrates). So growth AFTER drought (first rainfall), summer mowing, or non-killing freeze results in higher concentrations. 3. Herbicide application results in higher prussic acid concentrations for up to a couple of weeks (I'm assuming that's if you get an incomplete kill, stress the plant, and it starts regrowing from the rhizomes?) So I'm gonna graze away, not stress too much this summer, and pray I don't post pictures of dead cows in August! [/QUOTE]
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