18 BULLETIN 78, U. S. DEPARTMENT OF AGRICULTURE. 



The fourth experiment was again with tobacco planted on sod. 

 There were few weeds in the sod. Nearly a perfect stand of plants 

 was secured at the first planting, which was made during the last 

 week in May. The plat was replanted once. The loss was esti- 

 mated at less than 1 per cent. 



The fifth experiment was again with tobacco following cowpeas. 

 A perfect stand of plants was secured at the first planting, made 

 during the last week in May. Injury from the tobacco Crambus was 

 estimated at less than 1 per cent. 



The sixth experiment was with tobacco planted on red-clover sod. 

 The stand of clover had been good and there were few weeds. To- 

 bacco was planted during the last week in May. A good stand was 

 secured at the first planting. Loss from the Crambus was estimated 

 at less than 1 per cent. 



The seventh experiment was on spring-plowed land where stick- 

 weed, daisy, and plantain had been abundant. The tobacco was 

 planted during the second and third weeks in May. The loss was 

 estimated to be about 20 per cent, owing to late plants, the tobacco 

 having been replanted three times. Injury from the Crambus was 

 worst in the portion of the field where weeds had been most abundant. 



The eighth experiment was with tobacco following rye. The 

 stand of rye had been poor and the stubble was weedy. The first 

 planting was made on June 8, and was almost completely destroyed. 

 Tobacco was replanted three times. A stand of 90 per cent was 

 secured by the second week in July. The estimated decrease in 

 the value of the crop was about 30 per cent. 



The ninth experiment was with tobacco fo^owing cowpeas. The 

 first planting was made on June 2. About 20 per cent of plants 

 were injured by u wireworms." The plat was replanted once, there 

 being only slight damage after the second planting. The estimated 

 loss in value of the crop was about 10 per cent. Most of the injured 

 plants were in the end of the plat where the stand of peas had been 

 poor. 



Three experiments were under observation at the Virginia Tobacco 

 Experiment Station at Chatham in 1910 by Mr. K. P. Cocke, super- 

 intendent of the station. 



In experiment Xo. 1 tobacco was preceded by corn in which 

 crimson clover was sown at the last cultivation. This clover was 

 fallowed May 2. The corn was kept clean of weeds and grass. 

 Tobacco was set June 6. The first replanting was made June 14 

 with 5 per cent of the plants injured; the second replanting was 

 made June 23, with 3 per cent injury; and the third replanting, 

 June 28, with 2 per cent injury. About 97 per cent of a stand was 

 finally secured after the third replanting. 



