Questions on: Grasshoppers
Ron Smith, Horticulturist, NDSU Extension Service
Q: We are learning about grasshoppers. Could you answer some questions?
Thank you. (E-mail reference)
A: Glad to help -
- Grasshopper eggs stay alive during the winter because they are in a stage of very deep inactivity, so they are not vulnerable (can't be hurt) by the cold temperatures.
- The grasshopper body fluids are green, while ours is red. When they have their skin broken or cut, they "bleed green" while we would bleed red.
- The cold weather kills them off if you are talking about North Dakota. If you are from a mild climate, they might find some place warm enough to allow them to survive.
I hope this answers your questions.
Q. Thanks for all of your help in the past. I really do appreciate it.
Would you please tell me what kind of weeds these are?
Also would you please tell me what is wrong with this mock orange? I read to spray with fixed coppers for blight. What are fixed coppers?
How do I tell if I have a male or female bitter sweet vine? I read also that you have to have both.
I bought some Tempo for grasshoppers but it does not list grasshoppers on it to kill. I was told not to use it in the rden. It does not say this either.
How do shamrock plants go dormant? Do they lose their leaves or just not flower? (Winner, S.D.)
A. The weeds are barnyard grass and oxalis or wood sorrel. The third one is prostrate kurtweed.
The mock orange has septoria leaf spot. Protect next spring after leaf-out with a multipurpose fungicide such as Bordeaux mixture, which contains the copper you are asking about.
Bitter sweet are like holly bushes--no two sexes, no fruit--but will grow anyway. I guess you have to depend on the integrity of the nursery to include both sexes in the container.
Tempo can be used in the landscape and on lawns for good grasshopper control. Use either Malathion or Sevin in your garden.
Shamrock is a name given to many species of clover-like plants, generally Oxalis species. The ones I know set seed and die, with the seed sprouting later.
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