What is chewing holes in the strawberry leaves?


Pest Damage Identification Comments
Grasshoppers
Large holes, irregular in shape Easy to identify. Damage is not usually severe enough to reduce plant health.
Flea Beetles



Numerous small holes in leaf, beetles easily detected Small black beetles, good at jumping. Black or black with red markings on thorax.
(Fig 1)
This pest is not a problem if malathion is used for leafhopper control.
Strawberry root worm

Numerous small holes in leaf, beetles active at night. (Fig 2) Small oval beetle, about 1/8 inch, brown with 4 darker patches, or black, found at night.
(Fig 3)
This pest is potentially very serious because larvae also feed on roots. However, it rarely shows up where insecticides are used for leafhopper or other pest control.
Black vine weevil
Semi-circular notching from leaf edges.
(Fig 5)
Black beetles with large, prominent snout. (Fig 4) Use barrier fences and pitfall traps to prevent migration to new plantings. Consider using beneficial nematodes in late summer or early fall to control larvae in soil. Adults are difficult to control. Still no insecticides registered.

Fig 1 - Flea beetle

Figure 1 - Flea beetle

Fig 2 - Damage by strawberry root worm

Figure 2 - Damage by strawberry root worm

Fig 3 - Strawbery root worm

Figure 3 - Strawbery root worm

Fig 4 - Black vine weevil

Figure 4 - Black vine weevil

Fig 5 - Damage by black vine weevil

Figure 5 - Damage by black vine weevil

 


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