. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. 30 worms, aud made to interlock in the form of an arch above them. Interlace these twigs with broom-corn, hemlock, or other well-dried. Fia. 19.—Method of constructing arches upon which the cocoons are spun (after Eoman). brush. The feet of each arch should be only about a foot apart. The Davril cocooning ladder, described in Chapter III, may be used with advantage in the place of the brush arches. The temperature of the room should now be kept above 80°, as the silk does not flow so freely in a cool atmosphere.
. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. 30 worms, aud made to interlock in the form of an arch above them. Interlace these twigs with broom-corn, hemlock, or other well-dried. Fia. 19.—Method of constructing arches upon which the cocoons are spun (after Eoman). brush. The feet of each arch should be only about a foot apart. The Davril cocooning ladder, described in Chapter III, may be used with advantage in the place of the brush arches. The temperature of the room should now be kept above 80°, as the silk does not flow so freely in a cool atmosphere. The worms will imme- diately mount into the branches and commence to spin tlieir cocoons. They will not all, however, mount at the same time, aud those which are more tardy should be fed ofteu, but in small quantities at a time, in order to economize the leaves, as almost every moment some few will quit and mount. There will always be a few which altogether fail to mount, and prefer to spin in their trays. It is best, therefore, after the bulk have mounted, to remove the trays and lay brush carefully over them. The fact that the worms already mounted make a final discharge of soft and semi-fluid excrement before beginning to spin makes this separation necessary*, as otherwise the cocoons of the lower ones would be badly soiled. As the worms begin to spin they should be carefully watched, to guard against two or three of them making what is called a double or treble cocoon, which would be unfit for reeling purposes. Whenever one worm is about to spin up too near another, it should be carefully re- iuoved to another part of the arch. In two or three days the spinning will have been completed, aud in six or seven the chrysalis will be formed. GATHERING THE COCOONS. Eight days from the time the spinning commenced, it will be time to gather the cocoons. The arches should be carefully taken apart, aud the spotted or stained cocoons first removed and laid aside. Care should. Please
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