Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Thomas Perring"'
Publikováno v:
California Agriculture, Vol 55, Iss 4, Pp 13-18 (2001)
Pierce's disease has caused extensive losses to grapes in the Temecula Valley. The primary vector of Pierce's disease in the region is the glassy-winged sharpshooter (GWSS), which has been found in large numbers in citrus trees. We examined the rol
Externí odkaz:
https://doaj.org/article/2da88fb3e0f44ff8864069e421e23c62
Publikováno v:
California Agriculture, Vol 51, Iss 3, Pp 29-32 (1997)
The amount of disease occurring in any given area depends on the presence of the pathogen in sufficient abundance, susceptible hosts and favorable climatic conditions. Each of these factors were severely limiting to the establishment of Karnal bunt
Externí odkaz:
https://doaj.org/article/5f0245f1868142f9aa4c46a2b0fda3f1
Publikováno v:
California Agriculture, Vol 46, Iss 2, Pp 35-40 (1992)
Diseases caused by aphid-vectored viruses result in severe economic loss to Southern California melon growers. Information gathered over the past several years has given researchers new directions for managing this production problem.
Externí odkaz:
https://doaj.org/article/804f184255244c0a93aecda0faa282d7
Publikováno v:
California Agriculture, Vol 47, Iss 1, Pp 4-6 (1993)
The silverleaf whitefly (formerly "sweetpotato whitefly strain B," see p. 7) has caused extensive damage in Southern California's Imperial, Coachella, and Palo Verde valleys. It is now present in the San Joaquin Valley and is raising increasing conce
Externí odkaz:
https://doaj.org/article/61a966cf0dfe4423a94ac750049366e4
Publikováno v:
California Agriculture, Vol 45, Iss 6, Pp 10-12 (1991)
In 1990, a new strain of sweetpotato whitefly invaded Southern California agricultural regions, inflicting heavy damage on cruciferous crops, Problems related to this new strain have impacted vegetable growers throughout California and other growin
Externí odkaz:
https://doaj.org/article/bab5cbb8ebe44219a624f6ac46ea60a9
Publikováno v:
California Agriculture, Vol 47, Iss 1, Pp 7-8 (1993)
The whitefly that caused over $500 million in damage to U.S. agricultural production in 1991 initially was referred to as a strain of sweetpotato whitefly. New studies provide evidence that this whitefly is a distinct species, now referred to as silv
Externí odkaz:
https://doaj.org/article/9c99d0a366dc442a94b7a5f07e67229a
Sustainable Management of Arthropod Pests of Tomato provides insight into the proper and appropriate application of pesticides and the integration of alternative pest management methods. The basis of good crop management decisions is a better underst