IXSECTS INJURIOUS TO SHADE TREES. 69 



about in the early evening and seek the females which are 

 wingless and rest on the cocoons out of which they emerged. 

 The females lay egg-masses on these cocoons, cover them with 

 a snow-white frothy secretion and die. Some of these eggs 

 hatch and there is a partial second hrood ; abundant in South 

 Jersey, scant in ^orth Jersey. 



Remedial Measures. 



Clean off all egg-masses on trees during winter and band 

 the trees in early May with fluffy cotton to prevent cater- 

 pillars from getting up from other trees. If the trees are 

 infested spray with Paris green or arsenate of Band trees 

 lead as prescribed for elm-leaf beetle. Arse- for this> 

 nate of lead sticks better, never hurts foliage and, if well ap- 

 plied, needs only one application. The earlier it is used after 

 infestation is noted the better results will be. 



THE BAG-WORM, DROP-WORM OR BASKET- WORM. 

 Plate V., Figs. 3, 3a, 3b, 3c, 3d. 



Winters in the egg-stage in a gray silken bag or sack, which 

 may be found attached to trees and shrubs of almost all kinds, 

 coniferous as well as deciduous. The eggs hatch in May and 

 the young caterpillars at once make a little bag or sack which 

 is enlarged as they grow and in which they live 

 during their caterpillar life. Feed on the foli- kinds of 

 age, openly until July, then change to pupae 

 within their bags and in August the male moth emerges. 

 This is black, very active, with transparent wings and is 

 rarely seen. The female does not leave the bag but, after 

 impregnation, lays her eggs in a mass of orange cottony ma- 

 terial, then wriggles to the opening, drops to the ground and 

 dies. 



