164 THE MONTHLY BULLETIN. 



The Woolly Aphis. 



The woolly aphis is a sucking insect of the plant lice family. It is 

 dark red or purplish in color and covered with a long white cottony 

 excrescence aud is the most serious apple pest in many of the northern 

 counties. There are two forms, the aerial form living on the branches 

 of the tree, and the subterranean or underground form living on the 

 roots. This latter form is by far the most destructive. In setting out a 

 young orchard care must be taken to buy clean stock. The roots should 

 be examined and if puddled the mud must be washed off. Northern Spy 

 stock is practically woolly aphis proof. Trees should be set in deep and 

 cultivated frequently so as to force, the root to grow deeper. The aphis 

 seldom works more than twelve inches below the surface of the soil. 



The Brown Day Moth. 



In the early spring the salmon colored eggs of this moth are laid in 

 clusters around the small twigs. The larvas are dark colored with fine 

 red stripes and spots on the dorsal surface and are covered with long 

 tufts of hair. They are voracious feeders on the foliage of the various 

 fruits and bushes, both wild and cultivated, and often defoliate their 

 host. Prune tree foliage is a favorite food of these caterpillars. Destroy 

 the egg masses and apply arsenical sprays when larvae are numerous 

 enough to do much damage. 



MISCELLANEOUS INSECTS. 



The Rose Aphis. 



The rose aphids are the soft bodied sucking plant lice, green or pink 

 in color, that thickly infest the young shoots and buds of the rose during 

 the entire year, and especially in April and May. Washing the bushes 

 with a high pressure of water will knock many of them off, and a soap 

 solution or tobacco spray applied as frequently as necessary will easily 

 destroy them. 



The Rose Scale 



The small whitish scales when thickly massed give to the rose, rasp- 

 berry and blackberry canes a conspicuous appearance. All stages 

 occur practically throughout the year aud as the eggs are hard to kill, 

 successive sprayings with kerosene emulsion are necessary to control it. 

 Badly infested canes should be cut off and burned. 



The Raspberry Horn-tail. 



The raspberry horn-tail is a wasp-like insect whose larvEe burrow into 

 the canes of the rosaceous host, such as the raspberry, blackberry, rose 

 and loganberry. The winter is spent in the larval and resting stages 

 within the canes, the adults emerging in April. The eggs are inserted in 

 the tips of the youag shoots and soon hatch, the larvae burrowing out- 

 ward into the shoots. As soon as the tips are killed they turn about and 

 make their way down into the canes. The destruction of the tender eggs 

 before they hatch by exerting a slight pressure on them will tend to 

 control them. The shoots will not be injured by this treatment. A good 

 plan is to cut out infested canes. 



