Il8 MAINE AGRICULTURAL EXPERIMENT STATION. 



The Hemispherical Scale was found quite abundant upon 

 ferns grown in the house at Orono. It is also found on ferns 

 in the Station forcing house. It yields readily to treatment with 

 alkaline or kerosene alkaline solutions. 



The Elm-Tree Bark-Louse considered in the Report of 

 this Station, 1894, page 83, was reported again this season as 

 abundant on elms. 



The elms in Maine are also infested with Canker Worms, 

 Mourning Cloak Butterfly, The Oak-bark Weevil and 

 the Steel-Blue Flea Beetle, (Haltica chalybea.) 



The Buffalo Tree Hopper was reported this season for the 

 first time as doing damage to the foliage of apple trees. It is 

 pale grass-green in color, marked with whitish dots and a pale 

 yellow streak along each side. It is an active, jumping insect. 

 The form and size are shown in the accompanying plate, Fig. 1. 



The Yellow-necked Apple-tree Caterpillar was 

 reported this season for the first time as feeding on the foliage 

 of apple trees. The small white round eggs of this insect are 

 laid side by side in nearly straight rows on the under surface of 

 the leaves. The young larvae eat only the pulp of the leaves. 

 When older they devour all but the stem, destroying all the leaves 

 on a branch. The full grown caterpillars are about two inches 

 long. The head is large and black. The joint next to the head 

 is dull orange. There is a black stripe down the back and four 

 yellow stripes down the sides, alternating with three black ones. 

 Body clothed with soft whitish hairs. Fig. 5 shows the cater- 

 pillar in the position it assumes (with the head and tail up) when 

 disturbed. Though partial to apple trees, it attacks plums and 

 pears and several kinds of deciduous trees. It is capable of 

 doing great damage when abundant. The larvae feed together 

 and the branch on which they occur can be cut off or the clus- 

 ters of insects crushed. 



The Fall Canker Worm so abundant for several years has 

 not been abundant the past season, though doing some damage 

 in southern and western Maine. 



