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. The Bulletin of the North Carolina Department of Agriculture. Agriculture -- North Carolina. The Bulletin. 17 Upon the whole we are led to believe that the parasite and lady- beetle enemies (especially the former) of the Oyster-shell Scale are not so universally present and active in the more eastern localities as they are in the mountains. During the inspection of the orchard at Morrisville (April 9th) the only evidence we found of natural enemies on any of the trees was a single specimen of a larva, which was presumably of the "twice-stabbed lady-beetle," which was feeding on you

. The Bulletin of the North Carolina Department of Agriculture. Agriculture -- North Carolina. The Bulletin. 17 Upon the whole we are led to believe that the parasite and lady- beetle enemies (especially the former) of the Oyster-shell Scale are not so universally present and active in the more eastern localities as they are in the mountains. During the inspection of the orchard at Morrisville (April 9th) the only evidence we found of natural enemies on any of the trees was a single specimen of a larva, which was presumably of the "twice-stabbed lady-beetle," which was feeding on you Stock Photo
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. The Bulletin of the North Carolina Department of Agriculture. Agriculture -- North Carolina. The Bulletin. 17 Upon the whole we are led to believe that the parasite and lady- beetle enemies (especially the former) of the Oyster-shell Scale are not so universally present and active in the more eastern localities as they are in the mountains. During the inspection of the orchard at Morrisville (April 9th) the only evidence we found of natural enemies on any of the trees was a single specimen of a larva, which was presumably of the "twice-stabbed lady-beetle," which was feeding on young scales of this year's hatching. Yet that the lady-beetles sometimes occur in con- siderable numbers is evidenced in a note by Mr. Collett, referring to an infested tree at Andrews, Cherokee County, in which he says: "A colony of lady-beetles seem to spend their life on and around the scale- infested tree. In the summer I have seen hundreds of larva? on this tree.". Fig. 5.—Adult parasite of Oyster-shell Scale. 2. Larva of parasite in scale with scale-in- sect one side and eggs on other. 3. Pupa of parasite. All much enlarged. Drawn from specimens by C. L. Metcalf. Mites have been found among the eggs under over-wintering scales in two instances, one of which is indicated in the preceding table. In one case five individuals were under one scale, one of them having its head buried in an egg of the Oyster-shell Scale. But their number seems too small to consider them as an important aid in checking this scale. It is to be presumed that some other predaceous insects, like the smaller ground-beetles and larvse of the lace-wing flies, prey upon the young scale-insects to some extent. From the table given it is seen that in a total of 584 scales examined from six different localities 81 showed attack by parasites, lady- beetles or mites. This gives nearly 14 per cent as the average killed by these natural enemies during the winter, and this is enough to be really a help

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