l********7
发帖数: 190 | 1 谢谢哈，有啥好的办法解决一下....别人家的土用不得啊！ | y****2
发帖数: 11909 | 2 Google了一下，应该就是啊，原来这种bugs对草地有害呀，我经常看到一窝一窝的草地
上飞来飞去，看来现在危害不大， 但到7月破坏就会显示出来
Damage
Hairy chinch bugs prefer feeding on red fescues, perennial ryegrass,
bentgrass, and Kentucky bluegrass. Chinch bug infestations frequently occur
in turfgrass with thick thatch that is exposed to full sunlight during
periods of hot, dry weather. Chinch bug damage is often less noticeable
during the spring and early summer. Damage frequently appears from early
July through late August when the insects are actively feeding. Chinch bug
nymphs and adults cause significant feeding damage by removing plant fluids
and by injecting a toxin that causes the grass to yellow, turn reddish brown
, and eventually die. Chinch bug damaged areas often coalesce into large
patches of dead, brown grass. The suggested economic threshold for chinch
bug is 15 to 20 insects per square foot.
【在 l********7 的大作中提到】
: 谢谢哈，有啥好的办法解决一下....别人家的土用不得啊！
| l********7
发帖数: 190 | 3 比较可恶的地方在于这东西一旦有了，除非换厚厚的一层土，要不然每年初夏又都出来
了，我很郁闷，求解...
occur
fluids
【在 y****2 的大作中提到】
: Google了一下，应该就是啊，原来这种bugs对草地有害呀，我经常看到一窝一窝的草地
: 上飞来飞去，看来现在危害不大， 但到7月破坏就会显示出来
: Damage
: Hairy chinch bugs prefer feeding on red fescues, perennial ryegrass,
: bentgrass, and Kentucky bluegrass. Chinch bug infestations frequently occur
: in turfgrass with thick thatch that is exposed to full sunlight during
: periods of hot, dry weather. Chinch bug damage is often less noticeable
: during the spring and early summer. Damage frequently appears from early
: July through late August when the insects are actively feeding. Chinch bug
: nymphs and adults cause significant feeding damage by removing plant fluids
| y****2
发帖数: 11909 | 4 同等大牛：）
【在 l********7 的大作中提到】
: 比较可恶的地方在于这东西一旦有了，除非换厚厚的一层土，要不然每年初夏又都出来
: 了，我很郁闷，求解...
:
: occur
: fluids
| Q*****Q
发帖数: 61 | 5 可以试试Arena， 用量大概在0.4lb ai per acre. |
|
