OCR Text |
Show New Chemical Curbs Many Fruit Pests Tests Show Fungicide Effective in Orchard Characterized as effective against a wide range of fruit pests and diseases, dis-eases, a new dinitro fungicide and Insecticide for orchard use now is available commercially under the trade name of DN-289. It is a stable, clear solution containing eight ounces actual dinitro-secbutyl-phenol In each quart and is readily miscible with water. DN-289 has proved effective as an Insecticide for use in the dormant period against a variety of insects uch as rosy apple aphid, currant aphid, black cherry aphid, mealy plum aphid and viburnum aphid, eye-spotted bud moth, cherry case-bearer, case-bearer, pear psylla and oyster shell scale on apple and lilac. Promising results also have been shown in control con-trol of San Jose scale, scurfy scale and the eggs of the European red mite. As a fungicide, DN-289 has been used successfully for control of sooty blotch on pears. Amount of the compound required to attain good control ranges from Photo shows an apple protected by DN-289 (left) and cluster attacked at-tacked by rosy apple aphid. one quart to two quarts in 100 gallons gal-lons ot water. Aphids are controlled with one quart while two quarts are needed to kill bud moths, case-bearer and the pear psylla. Heavier concentrations con-centrations may be needed to control con-trol oyster shell scale. Research workers are conducting extensive tests to find other insects and diseases that may be controlled with the chemical, which was developed devel-oped by Dow Chemical company. |