Is there anything I can put on my garden to deter or kill grasshoppers,
without hurting my ladybugs? I am starting to see hundreds of small
grasshoppers, and I know they will grow up to be big ones and destroy my
plants! But I have so many ladybugs in the garden which are very beneficial,
so I don't want to kill them too! Any ideas?
This is the perfect time to use a biological control called Nosema locustaea.
It is sold under the brand name of Nolo Bait. It is a toxin carried in a soy
and/or wheat substrate which grasshoppers love. They eat it and die. Since
they are also cannibals, the larger hoppers which eat the dead ones also get
infected. It is very specific to grasshoppers. The time you put it out is when
you start to see they nymphs. One container may cost up to 20 dollars, but it
is enough for an acre.
Need a good, cheap, knowledge expanding present for a friend?
A microbial insecticide called Nosema locustae is sold under various trade
names for grasshopper control. This is a protozoan disease that occurs
naturally among grasshoppers and has been commercialized by mass production
under laboratory conditions. It does not affect other, beneficial, insects in
It claims up to 90% effective but .. that would probably be expecting
a bit much.
Another page that just has some useful info.. and mentions nosema
locustae says 50%.
I've had grasshopper problems every summer here in the Arkansas Ozarks.
This year I tried Semaspore Bait from Nitron Industries here in
Northwest Arkansas. It is also "Nosema locustae" as was stated in other
posts. I spread it about 6-8 weeks ago, so far, so good. I have seen a
couple tiny grasshoppers but not the destruction I have seen in past
years. According to there literature, it will carry on over at least
another year and is not harmful to humans, pets or wildlife. Their
website is www.nitron.com They have many other natural products as well.
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