Fumigants for citrus nematode: Several fumigants available for treatment of old citrus soil for control of nematode before replanting with young trees
AuthorsR. C. Baines
J. P. Martin
Authors AffiliationsR. C. Baines is Plant Nematologist, University of California, Riverside; J. P. Martin is Associate Chemist, University of California, Riverside.
Hilgardia 11(6):13-15. DOI:10.3733/ca.v011n06p13. June 1957.
The citrus nematode—Tylenchulus semipenetrans—is known to be in the 14 counties of California where there are commercial plantings of citrus. The nematode is a parasitic pest that feeds on the roots of citrus trees. Its feeding decreases vigor and rate of tree growth and the yield and size of fruit. The nematode does not kill the trees but may reduce growth of young lemons and oranges by 40% to 60%.
Also in this issue:Two-price system for barley: Analytical study of economic and administrative aspects of a probable dual pricing program indicates increased returns
Mechanized grape grafting: Portable machine developed for bench or field grafting of grapes saves time and eliminates the need for skilled labor
Grape leaf folder: Field tests compared effectiveness of insecticides in control of vineyard pest
Crown blight of cantaloupe: Experimental plots established in Imperial Valley to refute or confirm observations made in earlier studies of disorder
Frost protection by sprinklers: Use of overhead sprinklers for frost protection on low growing plants tested on blueberries in Santa Cruz County
Russet on Bartlett pears: Neither sprays nor dusts applied during the cluster-bud and bloom period increased russeting in tests during 1956 season
Scaly bark disease of citrus: Nine-year study of seven older orange orchards indicates advance of psorosis may be faster than is generally believed
Outline of ampelography for the vinifera grapes in California