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You are not alone in seeing more grasshoppers in LA. Just leave them be

A grasshopper on a plant.
This photograph shows a grasshopper, a flying insect, at the Parc Floral in eastern Paris.
(
Martin Lelievre
/
Getty Images
)

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Curious gardeners have been noticing more grasshoppers — a lot more. And inquiring minds want to know why — and what can be done about these insects with a reputation for destruction.

" So what happens is the standard grasshopper that we think of can become a locust if the weather conditions are right," said Lynn Kimsey, a distinguished professor emerita at UC Davis who specializes in bugs.  "In a true outbreak, they would be, you know, crossing roads by the thousands."

We are nowhere approaching outbreak proportions in Southern California.

But Eric Middleton, an entomologist with UC Agriculture and Natural Resources who works in pest management, can answer the why.

Big shocker: It's the weather

"For a grasshopper population to grow, you need a wet winter or spring so there's a lot of vegetation growing," said Middleton, who is based in San Diego. "Then you need warm conditions, which allow the young grasshoppers to emerge."

Think back to the intense bouts of rain Los Angeles received over the last months, the green hillsides and recent heatwave — these are the exact conditions for a grasshopper explosion.

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"It's the same thing that triggers locust outbreaks in the Middle East and North Africa, or North Dakota, places like this," Kimsey said. "It's pretty common."

Many species of grasshopper skip and scatter around Southern California. Probably the most common, Middleton said, is the gray bird grasshopper. They're 2 to 3 inches long, with larger wings, and  their populations start peaking around now.

Another common species is  the valley grasshopper, which is about an inch long.

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What you should do? Less is more

Depending on the species' life cycle, both Middleton and Kimsey said they expect this overpopulation to taper off by summer.

"It's not going to be a permanent thing," Kimsey said. " Usually they become bird food or mammal food because everything likes to eat them."

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If they pose a threat to your garden, don't go reaching for insecticides, the experts said.

 "Usually, they don't do a ton of damage to your garden," Middleton said.

So try catching them by hand or using temporary netting.

" This too shall pass," he added.

Alternatively, Kimsey said, they make a killer snack.

"They really are quite tasty. I highly recommend it," she said. "Like French fries, especially if you fry them."

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