13 



Calif. Control of Herbaceous Range Weeds . To learn how to control 

 herbaceous weeds in the areas they now occupy, how to prevent 

 their further spread, and what factors and combinations determine 

 the actual and potential areas of distribution. 

 Agron., Bot, 1635 



Colo . Weeds Detrimental to the Agricultural and Livestock Industries 

 and Other Interests of the State . To (1) increase effectiveness 

 and practicability of controlling weeds under wide range of en- 

 vironmental conditions and types of farming and ranching common to 

 the state of Colorado through improving methods now in use, eval- 

 uating promising methods, and developing new methods through co- 

 ordinated, fundamental field research, and (2) determine the 

 location, extent, and importance of those weeds and poisonous 

 plants that constitute or threaten to constitute a serious problem 

 in the state. 



Agron., Anim. Husb. 81 



Hawaii Methods in, and Evaluation of, Range Improvement Practices in 

 the Humid Lowland Pastures of Hawaii . To define and measure 

 appropriate practices of brush control, renovation of sward, fer- 

 tilization and reseeding in pastures of Hawaii in terms of compo- 

 nents of pasture sward, forage yield, animal carrying capacity, 

 costs, and returns. 



Agron. 129 (See W-25 in Part 10) 



Idaho The Control and Eradication of Weeds on Pasture and Range 

 Lands . To study efficiency of chemical, cultural, biological, 

 and competitive methods of seed control. To learn anatomical, 

 morphological, and physiological characteristics of pasture and 

 range weeds. Specific weeds as the following are being studied: 

 goatweed, Medusa head rye, larkspur, lupine, rabbit brush, etc. 

 Agron., Agr. Econ., Ent. 257 Coop. ARS 



Md. Weed Control in Legumes . To (1) further evaluate selective 



herbicides that may be used for control of various weeds in 

 legumes; (2) study importance of fertilizer rates and placement 

 and seed rates and placement in establishment of legumes with a 

 minimum of weed competition; and (3) study interrelation of 

 alfalfa varieties, rate of fertilization, use of chemical herbi- 

 cides, and insect control practices. 

 Agron., Ent. B-58-c Coop. ARS 



Mass. Control of Forage Crop Weeds in Massachusetts . To (1) control 

 weeds in new seedings of grass-legume mixtures; (2) control chick- 

 weed in alfalfa; (3) control perennial weeds in grasslands; and 

 (10 use herbicides in control of weeds and weed grasses in renova- 

 tion of old sods. 

 Agron. 7 



