32 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 84 



Plant-bugs. — Sprinkling with strong soapsuds, potash water, decoctions of 

 tobacco and of wahiut leaves (p. 202). 



Vine leaf-hopper. — Fumigation with tobacco under a movable tent ; syringing 

 with whale-oil soap and water (p. 229). 



Pear Psylla. — Hand picking; wash ofif with soapsuds and sulphur (p. 234). 



Woolly root-louse of the apple.— Melted resin and fish-oil ; cleaning up base 

 of tree and large roots; using potash solution (p. 244), 



Aphids. — Solutions of soap or a mixture of soapsuds and tobacco water used 

 warm ; also hot water ; one-half ounce of carbonate of ammonia to one quart of 

 water (Professor Lindley) ; lime; fumigating with tobacco and with sulphur 

 (p. 245). 



Scale insects. — Two parts of soft soap in eight parts of water, mixed with 

 lime to make a whitewash; two pounds of potash to seven quarts of water; one 

 quart salt to two gallons of water (p. 254). 



Papilio ostcrias in parsley. — Hand picking (p. 266). 



Pontia oleracea. — Hand picking and collecting the adults with nets (p. 271). 



Peach-tree borer. — Remove the earth around the base of the tree, crush the 

 cocoons and borer, cover the wounded parts with moist clay and surround the 

 trunk with a strip of sheathing paper extending two inches below the level of the 

 soil ; place fresh mortar around the root to confine the paper. Do this in the 

 spring or in June (original with Harris) (p. ZZ2>)- 



Hairy caterpillars {zvoolly bear caterpillar and allies). — Pay children to col- 

 lect them by the quart (p. 351). 



Salt marsh caterpillar. — Mow the marshes early in July, and if possible for 

 several years in succession. Burn over the marshes in March (pp. 354-355). 



Fall ivebivorm. — Destroy the webs as soon as they appear by stripping them 

 ofY and crushing them (p. 359). 



White marked tussock moth. — Hand destruction of the eggs in the winter 

 (p. 368). 



Tent caterpillar of the orchard. — Hand destruction of eggs in winter and early 

 spring; crushing the nests when they are small, during the hours when the young 

 caterpillars are inside; brushing off the larger webs or saturating them, with a 

 mop or sponge on the end of a pole, with refuse soapsuds, strong whitewash, or 

 "cheap oil"; repeat as often as once a week (pp. 374-375). 



Cutiuorms. — Soaking of the grain, before planting, in copperas water; rolling 

 the seed in lime or ashes ; mixing salt with the manure ; fall plowing of sward 

 lands intended for wheat or corn the following year; collecting the larvae by 

 hand ; manuring the soil with sea mud ; protect cabbage plants by wrapping a 

 walnut or hickory leaf around the stem; also use paper for this purpose (pp. 

 448-449). 



Cankcriuorms. — Tree banding with clay mortar, strips of old canvas or strong 

 paper tarred ; a collar of boards is smeared with tar ; collars of tin plate ; a belt 

 of cotton-wool (not effectual) ; troughs of tin or lead filled with cheap fish-oil, 

 etc. ; melted Indian rubber ; dusting the leaves when wet with dew with air- 

 slaked lime ; one pound of whale-oil soap to seven gallons of water used as a 

 sprinkle with a garden engine; jarring the trees; use of pigs to destroy pupae 

 under the ground (pp. 468-470). 



Hop vine caterpillars (Hypena). — Syringing with strong soapsuds, or oil 

 .soap two pounds to fourteen or fifteen gallons of water (p. 478). 



Leaf-rollers and bud-moths. — Pull off and crush withered clusters of leaves 

 containing caterpillars (p. 482). 



