. Cantaloup insects in the Southwest : how to control them. Melons; Agricultural pests; Pesticides. The spotted cucumber beetle. If seedlings are being damaged by the beetles as they come through the soil, apply a band of insecticide on the soil along the rows. If dieldrin is used, watch the field for a possible increase in spider mites. Spider Mites Spider mites (red spiders) are so small they are hard to see with the naked eye. but their webbing is con- spicuous when they become numerous. They injure the foliage by removing the chlorophyll (green coloring) from the leaves. This lowers the qu
. Cantaloup insects in the Southwest : how to control them. Melons; Agricultural pests; Pesticides. The spotted cucumber beetle. If seedlings are being damaged by the beetles as they come through the soil, apply a band of insecticide on the soil along the rows. If dieldrin is used, watch the field for a possible increase in spider mites. Spider Mites Spider mites (red spiders) are so small they are hard to see with the naked eye. but their webbing is con- spicuous when they become numerous. They injure the foliage by removing the chlorophyll (green coloring) from the leaves. This lowers the quality of the melons; if damage is severe, it will ex- pose the melons, causing sunburn damage. • Control.—Spider mites have several natural enemies that often keep them in check. Do not apply insecti- cides if you see only a few webbings, but make frequent observations. If the webbings become numerous, and con- trol seems necessary, apply demeton. A dust containing parathion and ovex is also effective. Parathion alone can be used, but it does not kill the eggs and must be repeated 2 or 3 times at weekly intervals. Whatever insecticide is used, watch the field and repeat applications when needed. The first application may kill the natural enemies of the spider mites. The mites may increase rapidly unless applications are repeated or a long- lasting insecticide is used. Demeton enters the plant tissue and kills mites for some time after appli- cation. Ovex kills the mite eggs and thus extends the efficiency of the para- thion-ovex dust. Applications of deme- ton or parathion-ovex therefore do not need to be made as frequently as appli- cations of parathion alone. APPLYING INSECTICIDES Dusts You can apply dusts by ground equip- ment or by aircraft. Use them at the following strengths: Parathion or diel- drin, 2 percent: malathion, 5 percent; ovex, percent; cryolite, 50 percent; and parathion-ovex mixture, 2 plus percent. With ground equipment, use 15 to 20 pounds of du
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