corn cob and grains damaged by glischrochilus quadrisignatus nitidulidae four-spotted sap beetle.

agriculture animal arthropod beetle brown bug close closeup cob control corn corncob crop crops damage damaged detail earworm environment fall farm farming field food fourspotted glischrochilus grain grains green insect insecticide invertebrate leaf macro maize moth natural nature nitidulidae pest pests plant plantation protection quadrisignatus sap vegetable wildlife worm