184 MAINE AGRICULTURAL EXPERIMENT STATION. I903. 



ROSE. 



Aug. 21. 

 Aug. 20. 



Sept. i. 

 Sept. 8. 



Sept. 10. 



UN8PRAVED.* 



Tops (lark green. 



No blight. 



Some blltjlit on most plants. 

 CoiKstiU'riible blltflit on a 

 few plants. 



Leaves on many plants one- 

 third (lead. 



Leaves all dead on some 

 plants, one-half dead on 

 others and an occasional 

 plant still quite green. 



Tops as on Sept. 8. Harvested 

 55 hills. Tliere are appar- 

 ently two varieties. The 

 dead vines have light rose 

 colored tubers and look like 

 Early Rose. The vines that 

 are still green have much 

 redder and thicker potatoes 

 ■wliich are inclined to grow 

 with prongs. 



Oct. 7. 



Aug. 21. 



Tops all dead, 

 hills. 



Harvested ."iS 



Aug. 

 Aug. 



2G. 



SejH. 1. 



Sept. S. 



Sept. 10. 



SrUAVED.* 



Pliinls sniull, good color. No 



bliglit. 

 Quite a little blight. More 



on some plants than otlicrs. 



Leaves on many plants one- 

 fourth dead. 



On most plants leaves half 

 dead. Stalks still good 

 color. 



Vines as Sept. 8. Harvested 

 5.') hills. Mixed same as the 

 unsprayed. 



Oct. 



Tops all dead, 

 hills. 



Harvested 55 



EARLY MICHIGAN. 



Unsprayed. 

 A very few spotted leaves on 

 3 or 4 plants. Does not look 

 like blight. Vines good 

 color. 



Aug. 26. Considerable blight 

 Sept. 1 



Leaves one-half dead with 

 blight. 



Sept. 



Vines are from three-fourths 

 to entirely dead. 



Sept. 10. Vines as Sept. 8. Harvested 

 35 hills. 



Oct. 7. 



Aug. 21. 

 Aug. 26. 

 Sept. 1. 



Sept. 8. 

 Sept. 10. 



Sept. Iff. 

 Sept. 19. 

 Oct. 7. 



Vines dead, 

 hills. 



Harvested 55 Oct. 



Sprayed. 

 Aug. 21. No blight. Vines small to 

 medium, good color. 



Aug. 26. Quite a little blight. 



Sept. 1. One half of leaves dead with 

 blight. 



Sept. 8. A few plants still vigorous. 

 Others from three-fourths to 

 entirely dead. 



Sept. 10. 



Vines as Sept. 8. 

 55 hills. 



Harvested 



7. Vines dead, 

 hills. 



Harvested 55 



HULETT'S RUST PROOF. 



Unsprayed. 

 Strong vigorous vines. Ex- 

 cellent color. No blight. 



Vines making good growth. 

 In bloom with many buds 

 not open. No blight. 



Still in full bloom and more 

 buds to open. Vines green 

 and vigorous. An occasion- 

 al spot that resembles 

 blight. 



Tops large and good color. A 

 few buds to open, but for 

 most part nearly through 

 bloom. Very little Sign of 

 blight. 



Harvested 7 

 very unripe. 



hills. Tubers 

 No rot. 



Blight beginning to appear. 



Vines going down with blight. 



Harvested 55 hills. Tubers 

 still quite green and stems 

 still green and standing. 

 No rot. 



Sprayed. 



Aug. 21. Good vines. Dark in color. 



Mostly in bloom. No blight. 



r t 



Aug. 26. In full bloom, with still 'many 



buds to open. No blight. 



Sept, 1. Still in full bloom with some 

 unopened buds. No blight. 



Sept. 8. Still in full bloom. No signs 

 of blight. 



Sept. 10. Too green to dig. 



Sept. 15. No blight. 



Sept. 19. Very little blight. 



Oct. 7. Stems and a few leaves still 



green. Harvested .i5 hills. 



Tubers quite green. No rot. 



* By unsprayed rows are meant plots 1—12 to which Bordeaux mixture was not 

 applied, and sprayed rows mean plots 13—24 which were sprayed seven times 

 •with Bordeaux mixture. 



