x**8
发帖数: 4844 | 1 哈，原来百慕大就是天线草啊？
google了一下，这玩意儿很难杀死。看下面：
Because it's so tough and persistent, most professionals and homeowners use
an herbicide (generally glyphosate) to kill it.
They spray, strip off the dying sod, irrigate to generate growth of any
surviving rhizomes, and then repeat the process at least once (one treatment
rarely kills a Bermuda lawn).
里面提到用glyphosate杀。HD有这个：
RM43 1 Gal. Glyphosate Plus Weed Preventer
http://www.homedepot.com/p/RM43-1-Gal-Glyphosate-Plus-Weed-Prev
好像不便宜。里面还有weed preventer, 不... 阅读全帖 |
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o*****i
发帖数: 1783 | 2 你在几区？ 最近气温多少？ 你用的草什么品种？
你的草地有没有撒除草剂 （Pre/post Emergent Herbicides）？ |
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n********y
发帖数: 313 | 3 如果撒了除草剂 （Pre/post Emergent Herbicides）， 多久才能种草子？ |
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h*****g
发帖数: 1327 | 4
了。
我去年秋天overseeding了草坪，但是有一些区域我觉得草还是有些薄，但是今年春天
我就感觉这些薄的区域又长出了很多嫩的新草。所以我觉得你不必要着急，继续浇水，
春草因为根太短，到夏天热的时候可能会死掉一部分的，你到了九月份气温降到70多度
的时候再补一次草种，明天草地就应该非常好了。
这个时候也是杂草开始生长的时候，如果你还没有做Pre imergent treatment，赶紧上
点Tenacity Turf Herbicide，这个对新草不会有什么影响。 |
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发帖数: 1 | 5 后院草坪有很多speedwell，请问大神，该怎么处理啊？
有人建议在春天或者8,9月份用pre-emergent herbicide，求具体指导。
谢谢。
另外，院子的砖头缝隙间有很多杂草，去年全部挖出来了，今年又长了小的，用什么样
的除草剂比较合适呢？无公害组合：盐，醋，soap可以吗？大家是怎么处理的呢？ |
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x**8
发帖数: 4844 | 6 pre-emergent药要两、三个月以后。一般的安全起见，也最好隔两个月的样子。
如果急着补种，就上tenaciy, 这种新药据说不影响草籽发芽，还兼有一定的
preemergent herbicide的作用。但是施药后难杀的杂草要两、三个星期才死，所以也
最好等两、三个星期的样子。俺今年秋天就准备先用Tenacity杀杂草（如果有的话），
然后补种。 |
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m**k
发帖数: 1008 | 9 被你 种草很久了， 今天终于下单了。 和weed斗争太痛苦了。还要买
Southern Ag Surfactant for Herbicides Non-Ionic吧。 |
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f******s
发帖数: 178 | 10 管不了一年。
而且也不可能一次把最大量下到地里。大部分的药物代谢曲线都相近。都是多次小剂量
，维持药物浓度。
在南方， 用药后，8周前， 8周后都可以 ryegrass overseeding
https://www.solutionsstores.com/prodiamine-65-wdg-barricade-herbicide
Product Q & A
Q:
Can this be used to control my crabgrass in tall fescue? I just overseeded a
week ago. How long do i have to wait to spot spray, not blanket my entire
lawn?
1 answers
Answer this Question
By Alan 18 days ago 0
0
A:
you shouldnt use this on any part of your lawn where you are trying to grow
new grass. you should wai... 阅读全帖 |
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S**P
发帖数: 835 | 12 【 以下文字转载自 Living 讨论区 】
发信人: SDTP (Hobby), 信区: Living
标 题: 杀死野草,用醋+洗涤剂
发信站: BBS 未名空间站 (Sun May 7 12:00:59 2017, 美东)
有人试过吗? 不想用herbicide,怕对孩子身体有影响。 在网上看到这种organic
biocide醋+洗涤剂的混合液，今天刚喷上，它妈的就下雨了。不知道会不会雨水会将醋
酸冲到临近的好草，花和树，然后对它们的生长有影响。
谢谢 |
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f******s
发帖数: 178 | 14 大体而言，bermuda 分两类， Hybird, wild type, 下面有分好多具体品种。
大部分bermuda草地的都是Hybird的， 漂亮， 好管理， sod也不贵， 只要好好打理，
一劳永矣，Hybird bermuda只能长seedheads, 但是没种子。
比起Hybird， wild type bermuda 的唯一的优点就是有种子，种子比sod便宜。但是要
比北方草种子贵好多。wild type bermuda 很难发芽，需要4周才能发芽，这期间要反
复浇灌，一直保持土壤湿度，一天需要浇灌3-4次。因为发芽太慢，会长好多野草， 还
需要特别的herbicides. 算上种子， 水费， 农药，总的费用不必sod便宜。 而且wild
type bermuda草地不好看。如果认为sod太贵， 就用Hybird bermuda plugs. 所以几
乎没人种wild type bermuda。大都是Hybird bermuda。
理论上，百慕大是有种子。 实际上，百慕大都是杂交的， 没种子。 |
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c******d
发帖数: 647 | 16 连翘花开的时候，家里正好有一颗，去年是三月底四月初，今年看能不能早一点，我到
时通知你，我也是在6a区 |
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x**8
发帖数: 4844 | 17 准确地说就是杂草要开始发芽的时候。一般查土壤温度。 |
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j**********3
发帖数: 595 | 18 我也差不多6b,问题是阔叶的杂草都特么开花了。。。
貌似chickweed,但是开小黄花。
撒了一遍weed b gon-chickweed，clover也没见什么效果。 |
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x**8
发帖数: 4844 | 20 weed b gone 普遍剂量不足。你可以稍大一点儿剂量，或者隔两周再喷一次。
clover应该很好杀的。 |
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j**********3
发帖数: 595 | 21 谢谢啊
weed N feed是不是要再等两周？那个软件说要到late spring.
然后我还没撒crabgrass preventer, 这个是必须的吗？
刚买的房子，前房主估计最后两年估计没好好照料，看着长满clover的草地真发愁。关
键是还不知道会长出什么其它的要蛾子来。哈哈哈 |
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j**********3
发帖数: 595 | 23 scotts crabgrass preventer不含2,4-D, weed N feed才含有2，4-D。所以搞得我很困
绕。
在我现在急需用2，4-D搞定clover的情况下,哪种其它的药才更适合我？
也可能是我太着急了，２，４－Ｄ是作用在叶子上的，所以scotts让晚春撒含２，４－
Ｄ的复合肥是有道理的。 |
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x****n
发帖数: 88 | 24 你没搞清楚啥是pre-emergent 啥是 post-emergent。
PRE是不让种子发芽，对于已经长出来的没有用。preventer顾名思义属于pre-emergent
。POST是杀正在生长的。2，4-D属于POST. Clover用weed b gone （里面含2，4-D）直
接喷叶子上就可以了。觉得效果不够好可以等一两个礼拜再喷一次。
一定要粘在叶子上才有效果，看到有人特意加一点洗手液之类的表面活性剂。 |
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f******s
发帖数: 178 | 25 现在， 您需要两个都用。
早就该用pre， 现在补上。
您现在正需要post。现在正是2，4-D的时候。
weed N feed里面的fertilizer成分最好留到晚春撒，现在您只需要里面的2，4-D成分
。2，4-D需要喷在叶面， fertilizer需要撒到根部。最后只有一个成分有用，所以说
weed N feed都是瞎扯蛋的东西。
困绕。
－Ｄ的复合肥是有道理的。 |
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j**********3
发帖数: 595 | 26 谢谢您，现在搞清楚了。
我刚买了一桶2,4-D直接上。好像weed b gon里边的成分不是那么有效。
这周末就去把scotts的halt crabgrass补上，其实也不算晚，我们这儿草坪上雪还没化
干净。只是clover长得也太早了。 |
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j**********3
发帖数: 595 | 27 地图上显示：
Current Soil Temperature : 44°
24-Hour Average : 38.3°
5 Day Average : 37.2°
但是左边表格显示 今天日均地温42C。
看来我还得等几天。
crabgrass
行。 |
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j**********3
发帖数: 595 | 28 地图上显示：
Current Soil Temperature : 44°
24-Hour Average : 38.3°
5 Day Average : 37.2°
但是左边表格显示 今天日均地温42C。
看来我还得等几天。
crabgrass
行。 |
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b*s
发帖数: 82482 | 30 看到说这些花草都是接触过敏，你不要去招惹就没事：
Since it doesn’t float freely in the air, it’s unlikely to cause sneezing,
itching, or watery eyes. People with hay fever, like me, often remain
symptom-free in a room full of blooming orchids.
Any organic matter can cause allergies, and orchid sensitivities do exist.
Naturally occurring chemicals in plants may be benign to most people’s
immune systems, but bother others. In addition, orchid growers may use
pesticides, herbicides, fungicides, or growth hormones. These ch... 阅读全帖 |
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k****t
发帖数: 12697 | 31 你自己拉的肯定比牛的绿. 牛用抗生素,还有牛吃的料, 就算是PASTURE 上放的也撒过
HERBICIDE |
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t****g
发帖数: 35582 | 32 糖爸，草坪上很多野草，主要是蒲公英和一种矮矮的蓝色小花。拔是没戏了，除了彻底
翻掉有什么别的办法？
不一定要现在control，看看什么时候弄最有效。是不是秋天入冬前狂喷weed
herbicide，然后加那种preermgenent的turf？ |
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w*l
发帖数: 2550 | 33 Why Aren’t G.M.O. Foods Labeled?
http://opinionator.blogs.nytimes.com/2011/02/15/why-arent-g-m-o
If you want to avoid sugar, aspartame, trans-fats, MSG, or just about
anything else, you read the label. If you want to avoid G.M.O.’s —
genetically modified organisms — you’re out of luck. They’re not listed.
You could, until now, simply buy organic foods, which by law can’t contain
more than 5 percent G.M.O.’s. Now, however, even that may not work.
In the last three weeks, the U.S. Department of Ag... 阅读全帖 |
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w*l
发帖数: 2550 | 34 ◇◇新语丝(www.xys.org)(xys3.dxiong.com)(www.xysforum.org)(xys-reader.org)◇◇
评“最新科研证实转基因玉米影响生育能力”
·方舟子·
“绿色和平”这个臭名昭著的反科学组织每隔一段时间就要来散布一下妖魔
化转基因的谣言吓唬公众，虽经多次揭露，其信用居然在中国媒体上还没有破产，
别人不烦我也烦了。既然此事在网上已被炒了起来，我就再评几句：
一、发布科学研究成果的正常渠道是经同行评议的学术期刊，越是重大的成
果应该在越是权威的期刊上发表。那些不先发论文而靠媒体来发布的所谓科研成
果，往往是在学术上站不住脚的，没有专业识别能力的普通公众对此应该警惕。
二、因为没有看到这个研究的论文，只能从新闻报道了解其内容。对比英文
报道，可知“绿色和平”歪曲、夸大了这个研究结果。据英文报道，该研究发现
的是喂了20周的转基因杂交玉米的小鼠产下的第三窝和第四窝的后代数量较少、
体重较轻，“绿色和平”竟给歪曲成“从第三代开始，后代的体重、体长和数量
都明显减少”，让人... 阅读全帖 |
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m**x
发帖数: 8454 | 35 这是真的吗？
As reported by Maria Gallagher, in the June 26, 2002 issue of the
Philadelphia Inquirer, by reading the PLU code, you can tell if the fruit
was genetically modified, organically grown or produced with chemical
fertilizers, fungicides, or herbicides.
Here's how it works:
For conventionally grown fruit, (grown with chemicals inputs), the PLU code
on the sticker consists of four numbers. Organically grown fruit has a five-
numeral PLU prefaced by the number 9. Genetically engineered (GM) fru... 阅读全帖 |
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w******e
发帖数: 953 | 36 How safe does transgenic food need to be?
Laura DeFrancesco1
Journal name:
Nature Biotechnology
Volume:
31,
Pages:
794–802
Year published:
(2013)
DOI:
doi:10.1038/nbt.2686
Published online 10 September 2013 Corrected online 26 September 2013
Article tools
PDF
How safe does transgenic food need to be?
Download as PDF (812 KB) View interactive PDF in ReadCube
Citation
Reprints
Rights & permissions
Article metrics
Disputes over how to assess a foodstuff's safety continue to play into
public fears a... 阅读全帖 |
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H********g
发帖数: 43926 | 37 给熟睡中的小青年闻两种强味道，一种香一种臭，结果都没醒，但是声音可以很有效地
把她们弄醒：
http://www.sciencedaily.com/releases/2004/05/040518075747.htm
Researchers studied the effects of two scents – the pleasurable peppermint
and offensive pyridine – on six participants in their early 20s.
Over two nights, participants wore an elastic chinstrap to encourage nose
breathing. Researchers presented odors through a tube attached to an air-
dilution device. The odors were tested during moderately deep Stage Two
sleep, deep Stage Four sleep and... 阅读全帖 |
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p****y
发帖数: 23737 | 38 http://www.nytimes.com/2010/05/04/business/energy-environment/04weed.html?pagewanted=1
On a recent afternoon here, Mr. Anderson watched as tractors crisscrossed a
rolling field — plowing and mixing herbicides into the soil to kill weeds
where soybeans will soon be planted.
Just as the heavy use of antibiotics contributed to the rise of drug-
resistant supergerms, American farmers’ near-ubiquitous use of the
weedkiller Roundup has led to the rapid growth of tenacious new superweeds.
To fight them |
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m**i
发帖数: 8296 | 39 边边讲的是不是这片萨？单开一个帖酱紫转走方便点。。。
http://www.healthcastle.com/organic_foods.shtml
Written by Keeley Drotz, RD, CD of HealthCastle.com; Published in July 2008
which foods to buy organic(HealthCastle.com) New organic foods are appearing
daily. Our choices now include organic cereal and butter - even chocolate.
Most families cannot afford to go completely organic. But which foods should
you buy organic whenever possible, and which are okay to buy non-organic?
15 Foods to Buy Organic
Meat, Dairy, and Eggs:... 阅读全帖 |
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C****e
发帖数: 12294 | 40 Read the Numbers on Your Fruit!
Conventional Fruit Labels Four digits starting with 4
Organic Fruit Labels Five digits and starts with number 9
Genetically Modified Fruits Start with the digit 8
So next time you go shopping, remember these critical numbers and know how
to avoid purchasing inorganic and GMO fruits.
Shop Safe:
This is good to know because stores aren't obligated to tell you if a fruit
has been genetically modified.
So if you come across an apple in the store and ... 阅读全帖 |
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m**i
发帖数: 8296 | 41 【 以下文字转载自 ChuanYu 讨论区 】
发信人: muai (暮霭：俯仰之间 Q *^O^* P 告别一年狗血~`), 信区: ChuanYu
标 题: 15 Foods to Buy Organic,zz
发信站: BBS 未名空间站 (Thu Feb 24 21:26:38 2011, 美东)
边边讲的是不是这片萨？单开一个帖酱紫转走方便点。。。
http://www.healthcastle.com/organic_foods.shtml
Written by Keeley Drotz, RD, CD of HealthCastle.com; Published in July 2008
which foods to buy organic(HealthCastle.com) New organic foods are appearing
daily. Our choices now include organic cereal and butter - even chocolate.
Most families cannot afford to go complete... 阅读全帖 |
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s******y
发帖数: 28562 | 43 Int J Biol Sci 2009; 5:706-726 ©Ivyspring International Publisher
Research Paper
A Comparison of the Effects of Three GM Corn Varieties on Mammalian Health
Joël Spiroux de Vendômois1, François Roullier1, Dominique
Cellier1,2, Gilles-Eric Séralini1,3
We present for the first time a comparative analysis of blood and organ
system data from trials with rats fed three main commercialized genetically
modified (GM) maize (NK 603, MON 810, MON 863), which are present in food
and fee... 阅读全帖 |
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s******y
发帖数: 28562 | 44 Transgenic beans are not based on Bt protein. It is based on anti-herbicide.
The concern for transgenesis safety is mostly on bt protein.
All organic bean or bean curd should not contain any trangenic material. |
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z**n
发帖数: 22303 | 45 这个抗除草剂基因的大豆对人体的潜在风险没有玉米那么引人关注啊,为什么呢?
herbicide. |
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B*****n
发帖数: 5 | 46 Anyone has inside information on this issue ?
http://www.gmwatch.org/component/content/article/11573-gm-indus
In the US, under the Federal Food, Drug and Cosmetic Act of 1938, the FDA is
responsible for ensuring that food is safe to eat, although by statute, it
regulates only food additives. By that definition, most crops are exempt
from FDA approval, although companies tasked with ensuring their products
are safe often voluntarily submit a considerable amount of information.
Certain types of co... 阅读全帖 |
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s*******e
发帖数: 1544 | 47 我觉得你怎个被孟山都洗脑了。你讲的那些转基因理由都是孟山都的宣传语。请问你是
不是拿着拿孟山都或其他外国种子公司的资助或为这些公司工作？美国现在很喜欢给中
国学农的奖学金，有些人就能成为以后打入中国粮食种子市场的先锋。退一步，就算你
和这些公司没有瓜葛，作为一个有农学背景的人，讲话基本上都是想当然，什么“我们
不发展自己的转基因工业，不意味着我们的绿色产品能竞争
得过国外的转基因食品”， 拜托多读点文献，了解一下已经有转基因工业的阿根廷，
巴西，印度这些国家的粮食主权怎么被孟山都吞噬再来说教行吗？
听听你讲的“用国外的经费，做本国的科研，总体是件挺好的事”
---在位的官员、科学家拿着外国公司的俸禄，他该替谁服务呢？你连基本的conflict
of interest 概念都没有。所有拿了外国公司俸禄的在转基因方面的意见都要被
discount。但是现在是这帮人掌握的话语权，在缺乏论证和透明的情况下要强行推进转
基因。
“转基因是很安全的抗病虫杂草的方式了。”
孟山都的剧毒除草剂根本不安全。 在《体外毒理学》杂志上发表的一项最新研究发现
，即使在非常低的水平，孟山都的除草剂配方综述破坏睾... 阅读全帖 |
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s*****g
发帖数: 3693 | 49 http://www.efsa.europa.eu/en/press/news/121004.htm
"EFSA’s initial review found that the design, reporting and analysis of the
study, as outlined in the paper, are inadequate. To enable the fullest
understanding of the study the Authority has invited authors Séralini et al
to share key additional information."
French lab got slaps in the face |
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l**********1
发帖数: 5204 | 50 一个黑脸 French paper 一个红脸 this report
GM玉米的安全性问题 在演京戏那 |
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