. Annual report of the Missouri State Board of Agriculture. Missouri. State Board of Agriculture; Agriculture -- Missouri. no suitable means of fighting these insects as is the case with the northern corn root-worm, because the insect is not confined in its food habits to the corn plant by any means, and therefore can- not be starved out, as in the case with the other root- worm. The insect seems to attack more especially sugar corn and corn vS" 24-Southem com Root-Worm. Larva, lateral planted early, or corn in the neighborhood of squash, cucumber, melons and the like. An illustration of
. Annual report of the Missouri State Board of Agriculture. Missouri. State Board of Agriculture; Agriculture -- Missouri. no suitable means of fighting these insects as is the case with the northern corn root-worm, because the insect is not confined in its food habits to the corn plant by any means, and therefore can- not be starved out, as in the case with the other root- worm. The insect seems to attack more especially sugar corn and corn vS" 24-Southem com Root-Worm. Larva, lateral planted early, or corn in the neighborhood of squash, cucumber, melons and the like. An illustration of the larvae of the southern corn root- worm is shown in figure 2t„ enlarged five di- ameters, and a side view of the same in figure 24, also magnified five diameters. A pupa is shown in figure 25, enlarged ten diameters. Insects in the larval condition are frequently attacked by a bacterial parasitic disease, which kills great numbers of them. Appar- ently when these insects become unduly numerous, they succumb very rapidly to this disease, which seems to be the only means by which these insects arc held in check ma- Fig. 25.—Southern Corn Root- Worm, Pupa; enlarged ten" di- ameters. THE WHITE GRUBS. Lachnosterna (several species). The common white grubs are among our most widespread and de- structive insects infesting general farm crops, not only throughout tnis country, but in Europe as well. They are the larval stage of what are commonly known as May beetles or June beetles, and are familiar to town people as well as to farmers, because of the fact that the beetles are so readly attracted to light that they frequently get into our houses and fly about the rooms' with a buzzing sound, bumping against the ceil- ing and the walls and finally tumbling down, recovering themselves and repeating the same process. These beetles, as everybody knows, are from one-half inch to three-fourths inch in length, of a robust form, the body being short and thick set and of a
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