. Fig. 43.—The narcissus stem nematode, with young worms and eggs. Enlarged nearly 150 times.) (From Ext. Cir. 118.) worms by growing some unsusceptible crop or keeping the land clear of all vegetation for one or more years. Drying the soil tends to kill out the worms. Of the crops commonly grown in California, the various grains, including sorghum, milo, and Kafir, as well as wheat, barley, oats, and rye are highly resistant and some of these may be grown as a winter crop followed by summer fallow for one or more seasons. The dryer the soil and the more frequently it is worked during the summ
. Fig. 43.—The narcissus stem nematode, with young worms and eggs. Enlarged nearly 150 times.) (From Ext. Cir. 118.) worms by growing some unsusceptible crop or keeping the land clear of all vegetation for one or more years. Drying the soil tends to kill out the worms. Of the crops commonly grown in California, the various grains, including sorghum, milo, and Kafir, as well as wheat, barley, oats, and rye are highly resistant and some of these may be grown as a winter crop followed by summer fallow for one or more seasons. The dryer the soil and the more frequently it is worked during the summer the quicker the worms will be exterminated. Other resistant crops which may be grown are certain varieties of cowpea (consult Division of Agronomy, College of Agriculture, Davis, regarding names and seed), velvet bean, sweet clover (Medicago), and peanuts. All weeds must he kept down whenever the eradication of nematodes is being attempted.
Size: 2820px × 1773px
Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionamerica, booksubjectplantdiseases
