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Glyphosate alternative?
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<blockquote data-quote="Old McDonald" data-source="post: 6999472" data-attributes="member: 47276"><p>I would like some suggestions based on general knowledge and experience please.</p><p></p><p>Last year, when I was unable to do any work for most of it, I had an influx of a weed that had first noticeably appeared the year before. Unfortunately most of it seeded last year. The commonest weeds have changed several times since I moved here as the fertility levels have been improved, possibly also because some had been suppressed by more aggressive and faster growing ones. I cannot identify the weed, and a specimen passed to my ag supplies man resulted in him and a couple of other customers not being able to name it. Because of age and my heart operation my wife and I have been in quarantine for coming up to 15 weeks - supplies are left in a vehicle at a distance from the house and picked up with protection later. We intend to remain quarantined for some time yet. Wait until infection levels drop a bit more. This means that even if the ag college opens I will not be taking a weed there for identification. I do not own a camera.</p><p></p><p>It is a summer growing annual with a good tap root and can grow to about 3ft/1m high. Single stem and upright with lanceolate leaves. Small flowers on top that look similar to groundsel. We have another weed that looks like a giant groundsel or small leaved chrysanthemum, but that is easily dealt with. After a late spring spraying the problem weed has no competition. Glyphosate at 6L/ha knocks it back and it remains stunted but does not die. 10L/ha has the same effect. I can stand this cover between the rows of trees as it prevents any windblow from the “willy willy” type winds we often get – mini tornadoes.</p><p></p><p>I want to kill it in the tree rows where the fertiliser and drip irrigation is supplied, also kill off the inter row growth in summer. I only have 4 hectares of trees at 6m centres between rows so cost is not important, especially along the tree rows. A clean tree line is important if it can be achieved. Hand hoeing is out of the question at present.</p><p></p><p>Any suggestions for a knock down that is likely to work, with or without a tank mix of glyphosate?</p></blockquote><p></p>
[QUOTE="Old McDonald, post: 6999472, member: 47276"] I would like some suggestions based on general knowledge and experience please. Last year, when I was unable to do any work for most of it, I had an influx of a weed that had first noticeably appeared the year before. Unfortunately most of it seeded last year. The commonest weeds have changed several times since I moved here as the fertility levels have been improved, possibly also because some had been suppressed by more aggressive and faster growing ones. I cannot identify the weed, and a specimen passed to my ag supplies man resulted in him and a couple of other customers not being able to name it. Because of age and my heart operation my wife and I have been in quarantine for coming up to 15 weeks - supplies are left in a vehicle at a distance from the house and picked up with protection later. We intend to remain quarantined for some time yet. Wait until infection levels drop a bit more. This means that even if the ag college opens I will not be taking a weed there for identification. I do not own a camera. It is a summer growing annual with a good tap root and can grow to about 3ft/1m high. Single stem and upright with lanceolate leaves. Small flowers on top that look similar to groundsel. We have another weed that looks like a giant groundsel or small leaved chrysanthemum, but that is easily dealt with. After a late spring spraying the problem weed has no competition. Glyphosate at 6L/ha knocks it back and it remains stunted but does not die. 10L/ha has the same effect. I can stand this cover between the rows of trees as it prevents any windblow from the “willy willy” type winds we often get – mini tornadoes. I want to kill it in the tree rows where the fertiliser and drip irrigation is supplied, also kill off the inter row growth in summer. I only have 4 hectares of trees at 6m centres between rows so cost is not important, especially along the tree rows. A clean tree line is important if it can be achieved. Hand hoeing is out of the question at present. Any suggestions for a knock down that is likely to work, with or without a tank mix of glyphosate? [/QUOTE]
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