September 29, 1906 



HORTICULTURE 



339 



Clematis heracleifolia 



I 



This clematis appeared as a seedling in the garden of 

 E. F. Dwyer, Lynn, Mass., and blossomed first in 

 August, 1904. The flowers which are very fragrant, 

 are j)roduced in great profusion as the photograj)h 

 shows. They are white shading to a delicate blue on 

 the tijis and nuirgins of the ])otals. The plant is a very 



strong grower, covering a trellis 0x10 ft. and blooms 

 through the month of August wlien there are but few 

 vines in flower. The plant was inspected by the garden 

 committee of the Massachusetts Horticultural Society 

 this season, who awarded it a first-class certificate as a 

 form of Clematis .stans which is a variety of C. 

 heracleifolia. 



Fall Web Worm 



The large webs conspicuously placed on numy fruit 

 and shade trees, hedges and roadside shrubljery are the 

 homes of the fall web worm — Hypathantria ciinea — 

 (and not of tlie brown-tail moth, as numy peojile 

 suppose) . 



Tlie four or five hundred eggs of this niotli ;u-:' laid 

 during the latter \rdi-t of .lime or in July on the under- 

 side of the leaves of almost any large bush or tree. 

 Soon hatching, the voiing caterpillars begin to consume 

 the foliage, eating at fir.<t only the pulpy parts but as 

 they grow, consuming more and more of the leaf, until 

 all but one or two of the larger veins is eaten. Almost 

 from the first tlicy spin a protecting weli wliieh is en- 

 larged from time to time as food or room is re<|uired. 

 until it is sometimes three feet long. 



.\.t first the cator]iiHars are pale yellow, spar.scly 

 liaired, with lilack heads and two rows of black spots 

 down the back. Bv fall tliey become mature, and are 

 then one inch long, with black head, black nuirkinsfs and 

 thickly covered with tufts of long yellow hairs. 



They now dro|) to the ground and form a slight cocoon 

 Tinder stones, sticks, rubbish, or just under the surface 

 of the ground. Here they pupate until the following 

 June when the moths appear. These have a wing ex- 

 panse of about 1 1-1 inches and are white in color witli 

 varying dots, stripes and streaks of black. There is con- 



siderable variation in tiie markings, some moths being 

 nearly white, others conspicuously spotted. 



Farther south tliere are two broods a year. 



In most of the country it is a serious jjcst to shade 

 trees more from tlie unsightly webs than from the dam- 

 age done, for natural enemies keep the insect in check 

 except during exceptional seasons. 



Earlv spraying before the web is formed will protect 

 the tree. The young can be crushed, or the webs may 

 be cut off and burned. When the latter metliod is pur- 

 sued it should be done early wliile the web is small. 

 Then it is only necessary to .sacrilice a twig and not 

 several lar^c brandies. 



<3<%. 



If in doubt as to the wisdom or tlie need of including 

 Horticulture in your advertising list for the coming 

 season please consider the fact that tlie progressive 

 houses using this journal regularly as an advertising 

 medium would not do so if they did not find it to their 

 advantage. If you believe in keeping good company 

 here is your opportunity. Get iu and stay in just as 

 they do. This is a proposition that does its own 

 proving. 



