m****2
发帖数: 229 | 1 刚刚新铺的SOD，现在长了很多的oxalis，长势很快啊。大家知道那种weed killer是见
效快的吗？ |
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f*1
发帖数: 837 | 2 Grassy weeds like crabgrass and poa annua are harder to control post-
emergently because they are also grasses. Broadleaf weeds like chickweed
and oxalis are easier to control post-emergently because they are not
grasses. All the above four can be effectively controlled by most pre-
emergent herbicides (i.e. crabgrass preventers).
Coalpilerd already identified chickweed in your first picture, although I
saw more poa annua there than chickweed so I reminded you the grassy ones as
well. Your se... 阅读全帖 |
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f*1
发帖数: 837 | 3 http://en.wikipedia.org/wiki/Oxalis
A characteristic of members of this genus is that they contain oxalic acid (
whose name references the genus), giving the leaves and flowers a sour taste
which can make them refreshing to chew.[3] In very large amounts, oxalic
acid may be considered slightly toxic, interfering with proper digestion and
kidney function. It should be noted, however, that oxalic acid is also
present in more commonly consumed foods such as spinach, broccoli, brussel
sprouts, grape... 阅读全帖 |
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f*1
发帖数: 837 | 4 If you decide to use chemicals, two types will kill many broadleaf weeds
including Broadleaf Plantain:
1. Glyphosate. This is the single active ingredient in Roundup. Don't
worry about the different names/brands. Get a product with high
concentration of glyphosate. They all have similar effectiveness. Note
this one is non-selective in that it kills almost all grasses, including
good ones.
2. 2,4-D plus Dicamba and/or MCPP, for example, Ortho Weed-B-Gon regular,
not the Max or CCO version, w... 阅读全帖 |
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f*1
发帖数: 837 | 5 If you decide to use chemicals, two types will kill many broadleaf weeds
including Broadleaf Plantain:
1. Glyphosate. This is the single active ingredient in Roundup. Don't
worry about the different names/brands. Get a product with high
concentration of glyphosate. They all have similar effects. Note
this one is non-selective in that it kills almost all grasses, including
good ones.
2. 2,4-D plus Dicamba and/or MCPP, for example, Ortho Weed-B-Gon regular,
not the Max or CCO version, where C... 阅读全帖 |
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H*****t
发帖数: 322 | 6 哇，终于看到又有人要跳这个坑了。你照片中的杂草在我的后院都有唉，尤其是背阴处
（bluegrass,clover,chickweeds,oxalis).我已经跟这帮无良的家伙斗争了十几年。战
果那是惨不忍睹。
bluegrass，chickweed,oxalis都是在9，10月份发芽，如果你在冬天到来之前不做
Preemergence Control。漫长的冬天让它们的根系发育得强壮无比，到四五月份开花时
你就头大了。更重要的是，如果你有一个懒邻居，干啥都是白费劲。
如果你真得想控制这些杂草，我的经验是在每年9月15日前后必需施一次weed control
，在重灾区可以考虑10月底加试一次。然后就是在立春之前不断的拔, 真的没有其它好
办法。 |
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c*****2
发帖数: 2709 | 7 今天到店里看了一下。请问一定要用Ortho WBG CCO杀chickweed, clover和oxalis么？
常用的ORTHO WBG Max Plus Crabgrass Concentrate能杀么(至少列了clover是杀的)？
主要担心用Ortho WBG CCO杀了chickweed, clover和oxalis，还得再杀一遍蒲公英。
ORTHO WBG Max Plus Crabgrass Concentrate肯定是能杀蒲公英的。
as
no |
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f*1
发帖数: 837 | 9 This is some kind of Oxalis. They are not Clovers.
Yes, if you can pull them by hand, that's the best.
Otherwise you need something with at least 8% triclopyr as the active
ingredient. It doesn't matter which brand you use. Multiple applications
may be needed with 2 weeks in-between. Always read the labels carefully.
If you are interested in more details, check my updates here:
http://www.mitbbs.com/article_t/gardening/31968859.html |
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k*******k
发帖数: 475 | 11 一方面，心理作用。主要是好草，有一点杂草就觉得怎么到处都是。你要是反过来，说
不定觉得bluegrass和fescue到处乱长。另一方面，好草，诸如bluegrass和fescue是竖
着长的，有些杂草crabgrass,clover，oxalis都是横着，铺着，成片成片长得，所以占
地儿大，一个种子发芽，就能占一大片地儿 |
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H******7
发帖数: 34403 | 12 Oxalis，Bermuda Buttercup, 黄花酢浆草
it is a nightmare for your backyard.
去？ |
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s******r
发帖数: 4749 | 13 ☆─────────────────────────────────────☆
longwinter (金丝软味甲) 于 (Tue Jan 4 22:03:47 2011, 美东) 提到:
上面铺了一层碎木片，下面的土是黑的，能否直接用来种菜，还是需要把木片清除出去？
另外院子里还长了这种草，看上去像国内的金花菜，能吃吗？
☆─────────────────────────────────────☆
xianyunn (little devil) 于 (Tue Jan 4 23:12:57 2011, 美东) 提到:
木片要清，大多数种子不是直接撒，要埋种子土壤合适的深度。
这个草不太清楚。
去？
☆─────────────────────────────────────☆
zhanglaosan (张老三) 于 (Wed Jan 5 00:03:29 2011, 美东) 提到:
碎木片是好东西啊,估计你前任花钱买的mulch
种的时候要挖开别扔啊,要扔送给我
去？
☆─────────────────────────────────────☆... 阅读全帖 |
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H******7
发帖数: 34403 | 14 Birdeye会开蓝色的小花，还蛮好看的，非草地区域我都留着。
最让我头疼的是Oxalis，Bermuda Buttercup。不过这东西好象有根瘤，会固N |
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h***a
发帖数: 358 | 15 Oxalis，Bermuda Buttercup，Google了下图片，好像我家也有。但是量很少。我暂时
不管了。 |
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T*******m
发帖数: 27308 | 16 草：中间的好像是oxalis.右下的是Yellow nutsedge.
豆：浇水太多？ 阳光不足？
气味，怀疑是薄荷或九层塔之类。请大家帮忙辨认看看。 |
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t*********r
发帖数: 630 | 17 蒲公英都被我家兔子吃完了。现在在喂蟹角草和 oxalis |
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c*****s
发帖数: 2146 | 20 copied from a UF doc
Scientific Name: Averrhoa carambola L.
Common Names: carambola, star fruit
(starfruit), bilimbi, and five-finger
Family: Oxalidaceae
Relatives: bilimbi, oxalis
Origin: Southeast Asia |
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T*******m
发帖数: 27308 | 21 这个是oxalis，用一般的Kill Weed But Not Grass就很容易杀死。 |
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f*1
发帖数: 837 | 24 When pulling, make sure you get the bulbs/bulblets/bulbils, which is the
primary reason it is hard to eradicate this kind of oxalis.
For chemical control, one can try herbicides with glyphosate (e.g. Roundup)
or at least 8% triclopyr (e.g. Ortho CCO) as the ingredient. Make sure you
read the labels carefully as glyphosate is non-selective (i.e. kill all) and
triclopyr is selective (i.e. kill some including some warm season grasses).
The key is multiple applications because the bulbs may not b... 阅读全帖 |
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f*1
发帖数: 837 | 25 Check if this helps:
http://www.mitbbs.com/article_t/gardening/31968859.html
There are 3 Ortho Weed-B-Gon products, and only one is effective for White
Clovers, i.e. the one labeled for Chickweed, Clover and Oxalis. You may
need to apply multiple times with 2-3 week intervals for a complete kill.
Give it some time, and it will work eventually. As always, carefully read
and follow the instructions.
If you want a faster kill, try a product named SpeedZone.
There is still debate about Corn Glute... 阅读全帖 |
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f*1
发帖数: 837 | 26 You have Poa Annua, Chickweed, and Oxalis. I'll write more about them
tomorrow. |
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f*1
发帖数: 837 | 27 The right sequence to kill broadleaf weeds is to use products with
combinations of 2,4-D, MCPP and dicamba first (Ortho WBG plain, Ortho WBG
Max and many others). If those can't kill your weeds and the weeds are
listed on Ortho WBG CCO, then use WBG CCO.
Some combinations of 2,4-D, MCPP and dicamba can kill some types of
chickweed, clover, and oxalis. But with so many combinations (both active
ingredients and concentration), it is hard to tell which ones are most
effective to which, so you hav... 阅读全帖 |
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