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烦死人的草坪

烦死人的草坪# Living

l*o2014-03-18 07:03

1 楼

我们家的草坪真是搞死人。搬进来到现在前前后后都换过了。去年又死光了。还用了
trugreen的。他们说我们家fungus，thatch等等。我们用了fungicide，用了 weed
control，还是好草死光，野草一堆。今年撒的能除两百多种野草的weed and feed撒了
野草长得更旺了。去年是不在家，草根都烂了。查了root rot说这种disease的宿主也
不是我们家的centipede啊。真是烦死人了。象这种大面积fungus死光的草地是不是要
对土地做点什么才能再铺草啊？

t*82014-03-18 07:03

2 楼

use plastic made green grass
$5 per sft

【在 l****o 的大作中提到】

: 我们家的草坪真是搞死人。搬进来到现在前前后后都换过了。去年又死光了。还用了
: trugreen的。他们说我们家fungus，thatch等等。我们用了fungicide，用了 weed
: control，还是好草死光，野草一堆。今年撒的能除两百多种野草的weed and feed撒了
: 野草长得更旺了。去年是不在家，草根都烂了。查了root rot说这种disease的宿主也
: 不是我们家的centipede啊。真是烦死人了。象这种大面积fungus死光的草地是不是要
: 对土地做点什么才能再铺草啊？

d*02014-03-18 07:03

3 楼

应该先找原因。。
读读这类文章看看？　　有没有显而易见的？
http://homeguides.sfgate.com/stop-lawn-fungus-21082.html

【在 l****o 的大作中提到】

l*o2014-03-18 07:03

4 楼

多谢，看了一下，估计是我们家地势低，一般下点雨什么的确实到处都有水洼。容易长
霉菌吧。这种地势问题好像不可解啊，

【在 d**********0 的大作中提到】

: 应该先找原因。。
: 读读这类文章看看？　　有没有显而易见的？
: http://homeguides.sfgate.com/stop-lawn-fungus-21082.html

s*e2014-03-18 07:03

5 楼

斑竹建议读的书，可以看看你家的图书馆有没有
http://www.mitbbs.com/article_t/Living/33146473.html

【在 l****o 的大作中提到】

w*m2014-03-18 07:03

6 楼

长霉菌的话，浇草要早上浇，以防止晚上浇长FUNGUS啥的

f*12014-03-18 07:03

7 楼

What's your watering schedule?
Did they say what kind of root rot you have?

l*o2014-03-18 07:03

8 楼

夏天是早上六点半，四个区每区十分钟。隔一天一次。
没说。root rot是我自己觉得根全部烂了，就去查，才知道有个病就叫root rot. 不知
道还有多种root rot?

【在 f*1 的大作中提到】

: What's your watering schedule?
: Did they say what kind of root rot you have?

f*12014-03-18 07:03

9 楼

Yes, there are the Take-All Root Rot and the Pythium Root Rot, both can
happen to warm season grass like centipedegrass.
One thing you can try is to ask your nearest Cooperative Extension Service
Office to identify the disease. You can start from here:
http://www.csrees.usda.gov/Extension/
I suggest you search for "centipede maintenance" and read articles from the
.edu domain. This way, you'll have a very good idea about what you should
and shouldn't do to centigedegrass, which is kind of different from other
warm season grass. The keyword "centipede decline" may also be relevant.
If you are kind of overwhelmed by the reading, here is a list of things to
check:
1. Do a soil test and amend the soil if necessary. One thing may surprise
you: the ideal pH level for centipedegrass is 5.5, which is pretty acid.
2. Do a soil compaction test and aerate if necessary.
Check this thread for more information about 1 and 2:
http://www.mitbbs.com/article_t/Living/33129493.html
3. Do a soil drainage test, as described here:
http://www.gardening.cornell.edu/factsheets/misc/soilbasics.htm
4. Mowing height: Make sure you target 1.5 inch (the ideal height for
centipede is 1 to 2 inches), so basically you should mow low. Make sure you
observe the 1/3rd rule: Never cut more than 1/3rd of the current grass
height. If this isn't possible to achieve the target height, cut more often
with a few days in between.
5. Watering: Your current watering schedule is problematic. If the
centipedegrass is being established, you should water more often (light
watering 4-6 times daily for the first 3-5 weeks, regular watering twice
daily for the next 6-10 weeks). However, after the grass is established,
you should practice deep and infrequent watering: only water when you see
the grass start to wilt (about once a week with adequately drained soil),
but if you water, water about one inch (the goal is to make sure the water
get to 4-6 inches into the soil).
6. Check your fertilizing schedule and understand that centipedegrass doesn'
t like too much nitrogen (the N in NPK), but it does like a bit more
potassium (the K in NPK). There is saying that "centipedegrass never dies
from under-fertilization, but can be killed from over-fertilization". I
suspect your application of weed and feed products add to the problem as
well (both over-fertilization and herbicide stress). Generally I don't like
the "weed and feed" products. Check here fore more detail:
http://www.mitbbs.com/article_t/Living/33143071.html
You'll notice that I didn't mention weed control above. This is because
once established properly, centipede grass can easily crowd out other weeds.
If there is really weed pressure, spot spray the weeds with proper
herbicides labeled for use with centipedegrass separately, not together with
the fertilizer.
This may sound a lot of work at first, but it really isn't that much once
you get the hang of it. Centipedegrass is considered "a lazyman's grass"
with lower maintenance requirements compared to other warm and cold season
grass:
- It doesn't need too much fertilizer.
- It grows slowly so it needs fewer mowings.
- It can crowd out weeds easily once established properly.

【在 l****o 的大作中提到】

: 夏天是早上六点半，四个区每区十分钟。隔一天一次。
: 没说。root rot是我自己觉得根全部烂了，就去查，才知道有个病就叫root rot. 不知
: 道还有多种root rot?