How can I kill the wild onions that are taking over?
ole_dawg
15 years ago
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wild_forager
15 years agohatchjon
15 years agoRelated Discussions
Wild onions taking over!
Comments (5)Wild onions/garlic will establish themselves most anywhere. In loose cultivated and nutrient rich soil they can get rather huge compared to the kinds you see in the common lawn...bigger than the green onions with bulbs you see at the grocery store. Wild onion is present pretty much everywhere in large dispersal areas...from Florida to Alaska and all points in between (but not Hawaii). Wild garlic is found pretty much everywhere but not as much in the arid areas in the US. The problem isn't soil stewardship as much as it is anyone who has an un-mowed or wild strip of land with flowering onions on them...especially if a bird has pecked them up after dispersal from the plant and pooped them onto your land. Unless your neighbor goes a very long time between mowings that let wild onion/garlic flower and set seed (this takes quite a long time) then your problem is probably coming from further away than him and your issue is probably birds/animals. As far as removal...it's a pain. You really do need to get down in there and remove as much of the bulb as possible manually by digging them out. There's some that will suggest natural herbicides or other types of treatments, but we're talking about some really tough bulbs here. This post was edited by nc-crn on Mon, Apr 7, 14 at 6:45...See Morehow does wild onion taste compared to tame onions?
Comments (10)I would be very hesitant to eat wild onions and/or wild garlic, although I do know people who swear that they are safe to eat. As a result of these claims, I have been doing some research on both wild onions and wild garlic. You might want to check out Texas Toxic Plant. Yes, they are referring to mainly to livestock, but I would be very hesitant to eat them. And according to Cornell University it states that it can be poisonous to "cattle, horses, children". And here is another site: FDA list. Toxic Plants states: Minor Toxicity: Ingestion of these plants may cause minor illnesses such as vomiting or diarrhea. If ingested, call the Poison Control Center or your doctor. So eat them if you really want to, but I think the good old 1015's from HEB are the best! Linda...See MoreIrises or wild onions...how to tell?
Comments (5)Matt, I've got a variety of grape hyacinth that come up in my backyard that look very much like what you've described including the shape of the bulb or corm. I thought they were wild onions, too, until I realized that they had no oniony smell. I had planted 3 or 4 groups of them years ago, but now they pop up all over my iris beds. I dug up all the "wanderers" last fall and put them back with the originals since they really are a neat little plant when they bloom. Shae...See Morewild violets taking over my 'lawn'
Comments (5)Hi, I did a google search with your question 'wild violets in lawn' and found this (see link). It describes using sugar "Jusp apply sugar (plain table sugar) at the rate of 1 pound per 250 sq.ft, and water it in well, and DON'T use any chemicals on your lawn." More info from gardenweb: http://forums2.gardenweb.com/forums/load/organic/msg0121101210881.html Scientific trials show tying up nitrate by adding bacterial foods suppresses weeds. A SWEET END TO WEEDS by Margrit Beemster Sugar has the potential to control annual weeds according to recent research trials conducted by researchers from Charles Sturt University. The researchers, ecologists Dr Suzanne Prober, Dr Ian Lunt and Dr Kevin Thiele, have applied sugar to trial plots for a project funded by the NSW Environmental Trust on how to restore understorey species in endangered Grassy White Box Woodlands. Trials on a private property "Windermere", and a travelling stock reserve "Green Gully" near Young in central NSW have provided dramatic results, with Patersons Curse and Wild Oats flourishing in untreated plots whilst plots treated with sugar had far fewer annual weeds. The researchers have found that sugar provides a good, short-term non-chemical and ecologically friendly method of weed control. "It appears sugar is a tool we can use to help change a system back to one dominated by native species rather than weeds," says Dr Suzanne Prober who has been working to conserve and restore grassy white box woodlands for the past 15 years. Nearly all of the woodland belt, from southern Queensland to north-east Victoria is now used for agricultural purposes, principally wheat and sheep. So why does the sugar work? Because it is one of the fastest ways of reducing soil nitrate levels. Dr ProberÂs compared soil nutrients in undisturbed woodlands and disturbed, degraded sites. She found the most striking difference between the two was in nitrate levels, which were extremely low in undisturbed remnants and high in degraded remnants. "It seems that many of our weed problems are due to high nutrient levels", says Dr Prober. "There is an enormous amount of information on how to increase soil nitrogen to improve crop growth, but very little on doing the reverse. However there has been some research done overseas where sugar was used to tie up nitrogen levels for a short time." The researchers, who spread half a kilogram of refined white sugar to each square metre of soil every three months, found this inhibited weed growth of most annual weeds giving the native plants the opportunity to become well-established. However more research is required to work out the optimum rate of application. "We realise that the sugar levels we used in our trials would not be economic to use over broad scales", said Dr Prober, "but at the moment we donÂt know if we would get similar results if we used less sugar or if we used cheaper alternatives such as molasses or sawdust". So how does sugar reduce soil nutrients? "When sugar is spread on the soil, it feeds soil micro-organisms, which then absorb lots of soil nutrients as they grow," explains Dr Ian Lunt from CSUÂs Institute for Land, Water and Society. "The micro-organisms then hold these nutrients so the weeds canÂt gobble them up. In effect we are Âstarving the weed species that require lots of nutrients to grow." The lack of nutrients stopped the weeds from growing large, allowing the native plants, which can grow well in low nutrient levels, to grow bigger and faster. The trial plots are now in their fourth year and the researchers believe that as the native grasses they have sown grow large enough, they will be able to lock-up the nutrients in their roots which will keep the weeds in check in the long run. Early results have indicated that nitrate levels are starting to drop in the plots with well established kangaroo grass. "We see what we have done so far as only part of the picture," says Dr Prober. "There are a number of directions we would like to go. One of our Honours students, Lisa Smallbone, is looking at whether sugar helps us to re-introduce native wildflowers into degraded sites. If the wildflowers establish well, we want to find out if they contribute to weed control and soil nitrogen cycling later on. Our long term goal is to get the native diversity back into the understorey by working out the best method to re-establish a native ecosystem that is self-sustaining and resistant to invasion by weed species." Using sugar as an organic weed control, to help to restore endangered woodlands and native grasslands, is an innovative alternative to using herbicides. "Herbicides are difficult to use in many remnants because they kill the native plants you are trying to save as well as the weeds," says Dr Lunt. "Sugar does not have this undesirable effect. Herbicides also donÂt reduce the soil nitrate as sugar does, which is the underlying reason for the flourishing weeds  they control the symptoms, not the cause. Sugar may also be a useful way to control weeds that grow near other endangered native plants." While the researchers are primarily interested in using sugar as a tool to help restore the understorey species in grassy box woodlands, they are aware their research could be the basis for other more agriculturally driven research. "Broad leaf weeds such as Patersons Curse are the bane of every farmerÂs life. Once infestations get very bad, it gets very difficult to control them," said Dr Lunt. "Sugar may help land managers to control broad-lead weeds and to re-introduce perennial grasses in many places across the region. In particular, it could be a really helpful tool in organic farming or in places where herbicides are difficult to apply."...See Morewild_forager
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