any of various four-winged hymenopteran insects (esp. families Tenthredinidae and Cimbicidae): the abdomen of the female is provided with a pair of sawlike organs that cut into plants, the eggs being then deposited in the cuts
Sawfly. (n.d.). In YourDictionary. Retrieved from https://www.yourdictionary.com/sawfly
Any of numerous hymenopteran insects of the suborder Symphyta, the females of which have sawlike ovipositors used for cutting into plant tissue to deposit their eggs, and the plant-feeding larvae of which sometimes damage crops and trees.
Currant and gooseberry are also attacked by sawfly larvae (Nematus ribesii and N.
For all exposed sawfly larvae hellebore washes are most fatal, but they must not be used over ripe or ripening fruit, as the hellebore is poisonous.
P. sylvestris in Britain is liable to many insect depredations: the pine-chafer, Hylurgus piniperda, is destructive in some places, the larva of this beetle feeding on the young succulent shoots, especially in young plantations; Hylobius abietis, the fir-weevil, eats away the bark, and numerous lepidopterous larvae devour the leaves; the pine-sawfly is also injurious in some seasons; the removal of all dead branches from the trees and from the ground beneath them is recommended, as most of these insects lay their eggs among the decaying bark and dead leaves.
Sawfly larvae can at once be recognized by the curious positions they assume, and by the number of pro-legs, which exceeds ten.