Zobrazeno 1 - 10
of 17
pro vyhledávání: '"J Bivins"'
Publikováno v:
California Agriculture, Vol 37, Iss 11 (1983)
The root lesion nematode causes a gradual decline and, if uncontrolled, a severe loss in production (quality as well as quantity) of greenhouse-grown roses. The disease progresses gradually; aboveground symptoms include lack of vigor, chlorosis, and
Externí odkaz:
https://doaj.org/article/2f61a3c470354eada362b5e4273bb200
Publikováno v:
California Agriculture, Vol 31, Iss 5 (1977)
Planning for water supply and for land use in agricultural areas has taken on new significance with enhanced public environmental awareness, new anti-pollution legislation, high costs of construction and energy, and increased economic opportunities f
Externí odkaz:
https://doaj.org/article/e94c7235ba144ff0b2adc87427574848
Publikováno v:
California Agriculture, Vol 14, Iss 8 (1960)
California Agriculture - All Issues
Externí odkaz:
https://doaj.org/article/4fd69fd387534e46abe56722e6d96b1d
Autor:
J Bivins
Publikováno v:
California Agriculture, Vol 14, Iss 5 (1960)
California Agriculture - All Issues
Externí odkaz:
https://doaj.org/article/9842e03737154bac8e4855109cd19e67
Autor:
J Bivins, A Kofranek
Publikováno v:
California Agriculture, Vol 9, Iss 9 (1955)
A new soil fumigant—vapam—proved to be an effective weed killer in column stocks—Matthiola incana—in Santa Barbara County tests conducted during the fall and winter of 1954–55.
Externí odkaz:
https://doaj.org/article/a68277340624410ebf96ca6d985206fb
Publikováno v:
California Agriculture, Vol 27, Iss 8 (1973)
Citrus mealybug Planococcus citri (Risso) is a serious pest attacking many greenhouse grown crops. Cottony masses of the insect occur in great numbers on the growing tips of the branches of plants (see photo). The greatest numbers occur in the summer
Externí odkaz:
https://doaj.org/article/daeca098e5fd4dfe9022b4219a62a790
Publikováno v:
California Agriculture, Vol 26, Iss 11 (1972)
Yellow oxalis (Oxalis corniculata) is frequently a serious pest in greenhouse rose production. When steam fumigation precedes planting, the oxalis seedlings and plants are killed. However, due to the three to five year interval between steam treatmen
Externí odkaz:
https://doaj.org/article/5f37c9b41b144a04bcc6f519fada98b7
Publikováno v:
California Agriculture, Vol 26, Iss 8 (1972)
Weeds are a problem in transplanted carnations during early stages of development when there can be no soil fumigation or steam sterilization. Early mechanical control of weeds is made impossible by the wire, plastic or bamboo netting that is placed
Externí odkaz:
https://doaj.org/article/863a3e278fbb47a0ae92e6f0f9df4a48
Publikováno v:
California Agriculture, Vol 24, Iss 12 (1970)
Annual weeds controlled by DCPA (Dacthal) a pre-emergence herbicide, without injury to onion plants even at excessive rates of application.
Externí odkaz:
https://doaj.org/article/32a0f6d8655f451abee4675658922481
Publikováno v:
California Agriculture, Vol 14, Iss 9 (1960)
Azalea root rot frequently causes serious plant losses, especially during prolonged cold, wet weather.
Externí odkaz:
https://doaj.org/article/33e9f87ca8ff4712a500769ceaeb8796