Any tips for getting rid of grasshoppers?

[rainbowgardener]

Any leaf chewing insects should be vulnerable to Neem oil....

[imafan26]

When the grass hoppers invade there isn't much to stop them unless you have a lot of predators around. Mostly they like grass and that is the best place to find and catch them. If they don't have grass to munch on, your crops are the alternative. Most organic controls will not work well on hard bodied insects. Unless you have attract some insect eating birds and spiders there is nothing much to do but hope for the best. If you can put row covers on before they get to the plants it may help.

[rainbowgardener]

Most organic controls will not work well on hard bodied insects.

That is true for anything that would be working on the outside. So grasshoppers are not vulnerable to diatomaceous earth (not only because they are hard bodied, but because they jump rather than crawl). They are not vulnerable to garlic-pepper sprays, except possibly for repellant qualities.

But Neem oil works when it is ingested as they eat the leaves it was sprayed on. So hard bodied doesn't matter.

I found this:

How Neem Oil Controls Grasshoppers
After you spray plant leaves with neem-based insecticide, grasshoppers eat the neem as they feed on the plant. Neem oil contains the natural insecticide azadirachtin, which reduces insect feeding and prevents immature insects from maturing into adults and laying eggs. Because grasshopper nymphs already look like adult grasshoppers and do not go through a complete metamorphosis, neem is more effective as a feeding deterrent than as a growth regulator on grasshoppers.
http://www.gardenandflowers.com/info_12 ... ntrol.html

[ButterflyLady29]

Semaspore works well, as long as you apply the bait before they get to the point where their feeding is destructive. The best part about it is that it's spread through cannibalism. While not 100% fatal it does reduce numbers and survivors don't eat nearly as much as they would without the infection.