Crotalaria for Forage


spectabilis, C. anagyroides, C. striata, C. intermedia, and C. lanceolata
had grown enough to cover the old portions of the plant. The
rows of C. maxillaris did not make recovery after the last mow-
ing.
 The last period of grazing in 1932 began on October 4.
C. incana was grazed quite closely. C. intermedia, was grazed so
closely by the third group of cows that no new growth appeared.
The unmowed portion of C. usaramoensis was grazed lightly; that
mowed once was grazed well; and that mowed the second time
was grazed completely. C. grantiana made good recovery and
seeded well.
 C. incana ranked first among the species used in this test, as
measured by the amount of foliage consumed, the readiness with
which the cows grazed it, and by the rapidity of growth after re-
moval of a portion of the top. C. intermedia followed as a close
second. On the basis of one year's observations, C. anagyroides
ranked a close third.
 INSECTS
 All species used in the trial were observed closely to deter-
mine the extent of insect injury. Crotalaria incana produced an
abundance of seedpods but was infested by the pumpkin bug
(Nezara viridula) and the bella moth (Utethesia bella) so severely
that the majority of the seeds were destroyed before maturing.
All other species used in the trials were practically free from in-
sect injuries.
 SUMMARY AND CONCLUSIONS
 Nine species of crotalarias were offered to dairy cows in a
"pasture cafeteria" two years in succession and observations
were made as to the readiness with which the cows grazed each
species. The recovery of the different species after grazing, and
the extent of insect injury of each species were observed.
 The leaves and tender stems of Crotalaria incana were grazed
most consistently by the cows. It made a good recovery after
grazing, and produced a fair yield of forage. This species, how-
ever, became woody and dropped its leaves early in the season.
An abundance of seedpods was produced, which were subject to
attacks by insects which destroyed the seed. C. incana was not
considered desirable as a forage crop, since such a crop should
produce an abundance of leaves and tender stems and sufficient
seed for propagation purposes.