72 OHIO EXPERIMENT STATION: BULLETIN 198. 



with an equal quantity of flour. The adult moth expands over an 

 inch and has pale yellow wings marked with dusky spots. It ap- 

 pears in June or July and fastens its eggs to the stems. The eggs 

 do not hatch until the following spring. 



The Currant Fruit Worm, Eufithecia imflicata,\^ another span 

 worm, but has ten legs instead of sixteen as is the case with the 

 preceding species. It eats holes into the sides of the fruit. Dust 

 with pyrethrum or spray with strong hellebore. 



MAY. 



The adult females of the Imported Currant Worm, Pteronus 

 veniricosus, appear early in May or late in April, and lay their eggs 

 in rows along the midribs on the veins of the leaves. In about ten days 

 the eggs hatch into dull white larvae which later become yellowish- 

 green and dotted over with many black spots. When full grown, the 

 larvae are about three-fourths of an inch long and often defoliate the 

 bushes. The best remedy is to dust the bushes in the morning 

 while the dew is on with white hellebore mixed with four parts, by 

 weight, of flour, or pyrethrum may be used in the same way. 

 Arsenate of lead may be applied as a spray while the fruit is very 

 young, but not much later than the setting period. The adult 

 female is a four-winged sawfly, with a honey-yellow body and black 

 head. The male is black, with yellow spots and yellow legs. 



The Four Lined Plant Bug, Poecilocafsus lineaius, appears in 

 the nymph form about the middle of May, or a little earlier. The 

 young nymphs are shining vermillion red, marked with black spots 

 on the thorax. _ They attack the tender leaves near the tips of the 

 twigs. Small brown spots appear at the points where their bills 

 were inserted, and eventually entire leaves and even the shoots may 

 die. The adult insects, which appear in early June, are about one- 

 third of an inch long, orange-yellow in color, with four stripes on 

 the back. The eggs are carried over winter in the tips of the canes, 

 hence, early spring and winter pruning and burning of these will 

 prevent hatching. The young may be destroyed by spraying with 

 kerosene emulsion diluted with five parts of water. 



Scurfy Scale, Chionaspis fiirfurtis, young hatch middle of May. 

 See page 51. 



Oyster Shell Scale, Lefidosafhes ulmi, young hatch middle of 

 May. See page 51. 



The Gooseberry Fruit ^omi,Zophodm^rossulariae,hortsmio 

 the growing berries, causing them to color prematurely and fall. 

 Several berries may be fastened together as one after another is 

 eaten out by the caterpillar. The moth has an expanse of nearly an 

 inch, the fore wings being pale gray with dark streaks and bands 



