IxjuRious Insects and How to Conteol Them. 77 



20 Raspberry g-outy gall beetle {Agrilus ruficollis). Irregular swellings 

 on canes are produced by larvae of this pest. 



Treatment: cut and burn infested canes during winter or early spring. 



21 Light loving grapevine beetle (Anomala lucicola). Brcwni^h or black 

 beetles about % inch long resembling a small June beetle. 



Treatment: dust vines with lime. Collect and destroy beetles. 



22 Spotted grapevine beetle {Pelidnota punctata). Brown, black spotted 

 beetles about 1 inch long resembling a June beetle. 



Treatment: handpicking. 



23 Grapevine flea beetle {HaUica clialyhea). Greenish or blue beetles 

 about Ys inch long feeding on buds, or brownish, black dotted larvae 

 about % inch long skeletonizing leaves. 



Treatment: spray with poison, using a large amount on buds, less for 

 young on leaves. 



24 Grapevine plume moth {Oxyptilus perisceUdactylus) . Small, greenish, 

 hairy caterpillars webbing together terminal leaves. 



Treatment: pick and destroy infested tips. 



25 Eight spotted forester (Ahjpia octomaculata) . Reddish, black ringed 

 caterpillars about Y2 inch long feeding on grapevine and Virginia creeper 

 in spring. 



Treatment: handpicking; spray with poison. 



26 White flower cricket {Oecanthvs nivetis). Series of punctures in twig3 

 of various kinds are made by this insect for the reception of its eggs. 

 Injury is usually too little to call for remedial measures, specially as the 

 insects are predaceous and therefore beneficial. 



Shade Tree Pests. 



27 White marked tussock moth {Notolophus leucostigma). Beautiful cat- 

 erpillars having three black plumes, four yellow or white tufts, a coral red 

 head, and body marked with black and yellow; defoliate horse chestnut, 

 elm and other shade trees. AYinter passed in white, frothy egg masses, 

 the caterpillars hatching the latter part of May and spinning up about a 

 month later, the moths appearing in July. Two broods about New York 

 city, but one farther north. 



Treatment: destroy eggs or spray foliage of infested tre^s with poison. 



28 Forest tent caterpillar; maple worm {Clisiocampa disstria). Foliage 

 of maple and fruit trees eaten in May and June by hairy blue headed 

 caterpillars with silvery spots along the back. Cocoons spun in June, the 

 brown moths flying in July. Eggs, in belts encircling smaller twigs, re- 

 main unhatched till spring. 



Treatment: destroy eggs; kill the caterpillars when massed on trunk 

 and limbs; spray foliage of infested trees with poison; collect and destroy 

 cocoons. \ I . J. i - '"' .^ 



