Show dust list tomatoes now I 1 f dust tomatoes with undiluted calcium arsenate to prevent yellow striped army worm injury urged dr G F knowlton utah state stat Ex extension tenion entomologist I 1 dust roadside soil and vegetation with 5 or 10 per cent DDT dust to stop migrating worms moving from alfalfa or other fields he suggested at this time last year several parts of utah were experiencing the worst of the 1946 outbreak which insulted lesul ted in loss sugar beets should be protects protect ed either by thorough power equipment dusting with 5 or 10 per cent DDT or with undiluted calcium arsenate these ch chemicals em I 1 may also be used on potatoes but not on alfalfa hay |