Indian forest insects of economic importance Coleoptera . 9.—Larval galleries of lloplo- i>n/>Y.\ spinicornis, Newn., in bast and sapwood of sal (much n .lured . • Plate II. V: js) -- •. • BOOS BAMBOO B - i REMARKS ON INJURIOUS AND BENEFICIAL INSECTS 15 (d) Damage done to the YoungTwigs.—The young twigs have aset of pests which usually confinethemselves to these parts of thetree. Some of them will alsobe found to infest seedlings andsaplings. The smaller branches and twigsof the tun-tree are tunnelled anddestroyed by the tun-tree borer(Hypsipyla). Scolytus minor is to be found inthe bast
Indian forest insects of economic importance Coleoptera . 9.—Larval galleries of lloplo- i>n/>Y.\ spinicornis, Newn., in bast and sapwood of sal (much n .lured . • Plate II. V: js) -- •. • BOOS BAMBOO B - i REMARKS ON INJURIOUS AND BENEFICIAL INSECTS 15 (d) Damage done to the YoungTwigs.—The young twigs have aset of pests which usually confinethemselves to these parts of thetree. Some of them will alsobe found to infest seedlings andsaplings. The smaller branches and twigsof the tun-tree are tunnelled anddestroyed by the tun-tree borer(Hypsipyla). Scolytus minor is to be found inthe bast of deodar twigs, both insaplings and old trees, whilst asmaller scolytid (p. 528) is to befound mining the smaller twigs. The twigs of the spruce andsilver fir suffer from the attacks ofa Chermes (C. himalayensis), whichforms galls upon and aborts andkills the former, whilst curling upand killing the latter. The Finns longifolia suffers froma pyralid caterpillar which hollowsout the extremities of the branchesand kills them. The twigs of the teak, Boswellin,Finns longifolia, silver fir, blue pine,etc., are destroyed by tiny scoly-tid pests (Cryphalus, Pityophthonts, PP. 533, 550-
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbeetles, bookyear1914
