132 



(Fig, 36.) 

 Mottled I'mueb Moth (Erainiis (hfoliuria). 



Injiiridus to the foliiiKt' of fruit trees, especially plums and elierries. 

 The larvie are sleiuler loopers or measuriug worms. I14 inches in length, with 

 chestnut reil heads, dark reddish-brown backs, mottled with broken narrow 

 black lines, the lowest distinct .-md waved: the sides bright .yellow. )ialcr 

 beneath. There is a dark reddish ])atch, sliaded with black, surrounding each 

 spiracle. The male ninth is of a dull ochre-brown hue. expanding 1% inches, 

 and has the upper wings dotted and crossed diagonally by two dark waved 

 bands ; the space between tliese is pale and bears on each wing a dark discal 

 spot; the lower wings are paler than the npper_ and like them sprinkled with 

 lirown dots, and they have a dark spot near the middle. The female moth is 

 brown, with two rows of conspicuous spots down the hack. The wings are 

 almost entirely aborted. When the moths appear in the autunni the fiHuales 

 crawl up the tnmks of trees and lay their eggs on tlie branches. In this 

 condition the in.sect passes the winter. 



The usual remedies for the canker worms are niiplirable for this species, 

 and consist of t.ving stick.v banihiges or mechanical contrivances around the 

 trunks of fruit trees to prevent the females from crawling up to deposit their 

 eggs, or W'hat will be found far more effective, spraying the trees iu spring 

 when the young caterpillars hatch, with Paris green and lime. 1 pound of 

 ■each to 200 gallons of water, or the Bordeaux mixture and I'aris green spray, 

 Xo. 0. 



Tin: Diamond-Back Moth 

 (PlutcUu inaciiliiiciiiiis, Ci'RTis^l'liitclla cnicifcrannii. Zeli..). 



Attack. — Small, green, exceedingly active caterpillars about one-quarter 

 to three-eighths of an inch in length, which attack the leaves of cabbages, 

 turnips, etc., eating numerous small holes through the younger leaves, ami 

 irregular blotches from the under surface of the older leaves. When disturbed 

 they run backwards, wriggling their bodies violently from side to side. .-111(1, 

 by means of a silken thread, f.ill to tlie ground, where they lie quite still. 



The caterpillar of the diamond-back moth is iu some .vears a serious pest 

 of cabbages, turnips, rape and almost all other cruciferous plants. In years 

 of bad attack tlie whole plant soon turns white from the green cellular matter 

 having been eaten away, and the jilants dry up. It is probable that there are 

 two regular broods in the year: but occasionally in late autumns some of the 

 second brood emerge and produce a third supplementary brood, part of which 



