138 



STATE BOARD OP AGRICULTURE. 



THE LONG LECANIUM AND ITS FUNGUS DISEASE. 



A scale-insect, belonging to the group of soft-scales, and known as 

 the long Lecanium, is long and slender as the name implies, yellowish- 

 brown in color with blackish markings along the sides. This insect is 

 a pest of importance in greenhouses, congregating in great numbers on 

 its food-plants, and in our green-house threatening the death of many 

 plants. It is, however, here attacked regularly every autumn by a fun- 

 gus disease which so far reduces its numbers that no damage is done 

 except in comparatively rare cases. 



The disease proves, on growing it in cultures, to be a new species, 

 which, therefore, has no common name, it appears as a white or yel- 

 lowish growth covering the insect, in typical cases, and producing seed- 

 like bodies or gonidia on the surface. 



Fig. 3.— Periodical cicada, from Packard, Forest Insects, U. S. Ent. Com. 



THE MAPLE COTTONY FALSE MEALY-BUG. 



An insect belonging to the scale-insects and very closely allied to 

 the mealy-bugs has appeared on the maples in one locnlity in Michigan. 

 The female is white and cottony and when full-grown usually is cov- 

 ered with a cottony mass holding the young. Tlie insect is usually con- 

 trolled by a spray of kerosene-emulsion or by any of the contact sprays 

 which are used in the winter time. It does not bid fair to prove a very 

 serious enemy. 



THE PERIODICAL CICADA. 



This insect appeared in Michigan in the following localities: Battle 

 Creek, Birmingham, Kalamazoo, Ann Arbor, Ypsilanti, Adamsville, 

 Bitely, Flint, and questionably at Moorestown. No doubt they occurred 

 in other places as well, but the above covers all the localities known 

 either to mvself or to Director C. F. Schneider of the Weather Bureau, 

 who kindly turned over his records to me. 



