Insect identification > Thysanoptera > Strawberry thrips

Strawberry thrips

The wheat or strawberry thrips (Frankliniella tritici Fitch). - This is probably the most widely distributed species of the group in this country. It feeds on wheat, strawberry, apple and many other plants and where the blossom is attacked, as in the case of the strawberry, it is blighted, preventing the formation of the fruit and producing the stunted structures known as "buttons," instead.

Leaves attacked often curl and become malformed, the particular parts injured soon turning brown and dying. In California it is a particular pest of alfalfa.

The adult is about a twentieth of an inch long, yellowish in color. In the warmer parts of the South it is more or less active at all seasons of the year, but in the North it winters in protected places, many probably, like other species, in grass fields close to the ground.

The life history in the South requires about 12 days but is probably longer in the cooler temperatures of the Northern states, and several generations are produced in a season. This insect is also known as the flower thrips.