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United States Department of Agriculture. 
19^2. A much larger harvest of hay crop seeds needed in 1942. U. S. 
Dept. Agr., Food for Freedom Program, Background Information 
Series, No. 7, 5 pp. 
p. 3s A lack of sufficient pollination insects when red 
clover is blooming is one reason for low seed yields. Honeybees . 
one of the principal pollinators of red clover, are the only kind 
that can be readily increased and moved. The placement of one 
hive of honeybees per acre adjacent to or in a red clover field 
when blooming will increase seed production . 
Clover, Strawberry 
Hollowell, E. A. 
1939. Strawberry clover. U. S. Dept. Agr, Leaflet 176, 8 pp. 
p. 6: The blossoms of strawberry clover are visited by honey- 
bees. Apparently they obtain considerable nectar, which indicates 
that this is a good honey plant. 
Clover, White 
Hollowell, E. A, 
1936. White clover. U, S. Dept. Agr. Leaflet IIP, 8 pp. 
p. 7: White clover is naturally a free-blossoming plant in 
all parts of the United States, but only in a few sections has 
seed production developed as a farm enterprise. ... Even when 
blossoms are abundant, moist, cloudy weather is unfavorable to 
bee activity, and necessary cross-pollination is, therefore, re- 
stricted and seed production reduced. The presence of colonies 
of honeybees in the immediate vicinity of clover-seed producing 
fields usually insures a maximum of cross-pollination . 
Cotton 
Allard, H. A. 
1910. Preliminary observations concerning natural crossing in cotton. 
Amer. Breeders' Mag. 1: 24.7-261. 
pp. 256-257: Honeybees are among the most frequent visitors 
of cotton blossoms, but, at the same time, they are very generally 
visitors of the outer involucral nectaries alone. ... Nearly all 
bee visitors show a marked tendency to pass from plant to plant 
uo and down the rows rather than across. 
p. 2581 These casual records are sufficient to show the 
enormous number of blossoms a single bee is capable of visiting 
