37° 



BUGS, INSECTS, ETC—REMEDIES FOR. 



yellow eggs. Those which do not con- 

 tain eggs are the male bags, and his empty- 

 chrysalis skin is generally found protrud- 

 ing from the lower end. About the mid- 

 dle of next May these eggs will hatch 

 into active little worms, which, from the 

 first moment of their lives, commence to 



form for themselves little bags. Thej 

 crawl on to a tender leaf, and, attached 

 to their anterior feet with their tails hoist- 

 ed in the air, they each spin around them- 

 selves a ring of silk, to which they soon fas- 

 ten bits of leaf. They continue adding to the 

 lower edge of the ring, pushing it up as ii 



jr IG- ^ — Bag-Worm, alias Basket-Worm, alias Drop- Worm. 



increases in width, till it reaches the tail 

 and forms a sort of cone, as represented 

 at Figure 14, g. As the worms grow, 

 they continue to increase their bags from 

 tha bottom, until the latter become so 

 large and heavy that the worms let them 

 hang instead of holding them upright, as 

 they did while they were young. By the 

 end of July they have become full grown, 

 when they present the appearance of 

 Figure 14, /. The worm on being 

 pulled out, appearing as at Figure 14, a. 

 "This full grown condition is not attained, 

 however, without critical periods. At 

 four different times during their growth 

 these worms close up the mouths of then- 

 bags and retire for two days to cast their 

 skins or moult, as is the nature of their 

 kind, and they push their old skins 

 through a passage which is always left 

 open at the extremity of the bag, and 

 which also allows the passage of the ex- 

 crement. 



Remedies. — From the natural history 

 of this Bag-worm it becomes obvious, 

 that by plucking the cases in the winter 

 time, and burning them, you can effectu- 

 ally rid your trees of them, and we advise 

 all who desire healthy trees to do this 

 before the buds begin to burst in the 

 spring. Where this is not done the 

 ^worms will continue to increase, and 



partly defoliating the tree each yeai 

 slowly, but surely, sap its life. 



SEED CORN WORM.— This maggc 

 greatly resembles the Onion maggots 

 which are known to attack the onion ii 

 this country, and its work on corn i 

 similar to that of this last-named maggc 

 on the onion , for it excoriates and gnaw 

 into the seed-corn, as shown at Figure 1 j 

 and finally causes such seed to rot. 



After having become full fed, thes 

 maggots usually leave the kernels fo 

 the surroundin 

 earth,where the 

 contract int 

 smooth, hare 

 ligh t-browi 

 pupae, and ii 

 about a week al 

 terwardsthepei 

 feet fly pushes open a little cap at th 

 anterior end, and issues forth to the ligh 

 of day. In this state it is a two-wingei 

 fly belonging to the order Diptera, am 

 quite inconspicuous in its markings am 

 appearance. 



Remedies. — It is difficult to suggest ; 

 remedy for this pest, as its presence i 

 not observed till the mischief is done 

 Hot water has been found effectual ii 

 killing the Onion maggot, without injur 

 ing the onions, and would doubtless prov 



Fig. 



15. — Seed Corn 

 Worm. 



