Gall-inducing insect Gall-inducing insect A gall-inducing insect is any insect that can cause the growth of galls within plants. The term gall fly is also used to cover these species, although most are not true flies. There are several groups of insects that meet this description. They include the gall wasps, scales, gall midges, aphids, psyllids and certain species of leafminer flies. Galls are growth deformities induced in certain plants by various insects which are mostly species-specific. The gall's form or type depends on what organism is attacking the plant and where the plant is being attacked. Based on the form, there
Tupolev ANT-37 Tupolev ANT-37 The Tupolev ANT-37 (or DB-2) was a Soviet twin-engined long-range bomber designed and built by the Tupolev design bureau, the design team operating under the guidance of Pavel Sukhoi. The aircraft did not enter production, but three examples of the type were used for research and record breaking flights. Based on the unbuilt Tupolev ANT-36 (DB-1) single-engined bomber, the ANT-37 was a twin-engined monoplane of stressed skin, dural construction, fitted with a high-aspect-ratio wing and tailwheel landing gear, the main units retracting into the engine nacelles. Powered by Gnome-Rhône 14K radial engines, the prototype first flew on 16