Zobrazeno 1 - 10
of 29
pro vyhledávání: '"V. Sevacherian"'
Autor:
V Sevacherian, K El-Zik
Publikováno v:
California Agriculture, Vol 38, Iss 11 (1984)
A tool for crop and insect management
Externí odkaz:
https://doaj.org/article/291a1136c8df4cbf8504386086c1c87a
Publikováno v:
California Agriculture, Vol 38, Iss 5 (1984)
Despite yield variability risk, early termination appears most profitable practice
Externí odkaz:
https://doaj.org/article/836cf6604ca54520a8d17ce566666776
Autor:
V Stern, V Sevacherian
Publikováno v:
California Agriculture, Vol 32, Iss 7 (1978)
Late summer storms carry the pink bollworm into the San Joaquin Valley. Cotton growth studies indicate this pest has less potential for damage in the San Joaquin Valley than in the southern desert valleys.
Externí odkaz:
https://doaj.org/article/afd5d3d08529415092b23d6ab2100d06
Publikováno v:
California Agriculture, Vol 32, Iss 2 (1978)
California Agriculture - All Issues
Externí odkaz:
https://doaj.org/article/fa9b4695ee814dac8a83589bdf68f74d
Autor:
J Mollet, V Sevacherian
Publikováno v:
California Agriculture, Vol 38, Iss 9 (1984)
Not available – first paragraph follows: In sampling for spider mites on cotton, time limitations are important, especially when Tetranychus cinnabarinus (Boisduval) populations can reach levels exceeding tens of thousands per plant. Counting all T
Externí odkaz:
https://doaj.org/article/ffb6450b7f634e819ae67f763732f5f6
Publikováno v:
California Agriculture, Vol 31, Iss 4 (1977)
The lettuce root aphid, Pemphigus bursarius L., can cause considerable damage to crops of summer head lettuce. Its primary host is the Lombardy poplar, Populus italica var. nigra. The aphids, or “stem mothers,” which hatch in the spring from eggs
Externí odkaz:
https://doaj.org/article/2f1b8118f3934bd693ddfde6228552dc
Publikováno v:
California Agriculture, Vol 30, Iss 6 (1976)
“Repeated applications of insecticide have not only increased production costs, but also have destroyed many beneficial insects and further aggravated pest problems.”
Externí odkaz:
https://doaj.org/article/2b5b28c24c9b471a921fd19c1abdc11b
Publikováno v:
California Agriculture, Vol 23, Iss 2 (1969)
EARLY SEASON treatments on cotton for control of lygus bugs often eliminate natural enemies of the bollworm, beet armyworm, cabbage looper, and spider mites. In the absence of biological control, these pests can often increase later in the season and
Externí odkaz:
https://doaj.org/article/5fb84f094578431fa952fe381d2c0a17
Publikováno v:
Journal of Economic Entomology. 72:144-147
Degree-day (dd) accumulation was used as a means of forecasting moth population peaks of Pectinophora gossypiella (Saunders). Male moths exhibited cyclic population peaks at intervals of 23176±1154 dd’s. These findings should reduce the monitoring
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::78015e633d8c9289e7fad2cd52b8e800
https://doi.org/10.1093/jee/72.1.144
https://doi.org/10.1093/jee/72.1.144
Publikováno v:
Environmental Entomology. 13:1511-1514
Dispersion indices, including Green's coefficient of dispersion ( Cx ), the standardized Morisita's coefficient ( Ip ), mean crowding ( m * ), Lloyd's “patchiness index” ( m * /m) and variance/mean ratio ( s 2/ m ), as well as Iwao's regression o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5381661326b29e8bd3a22e07ac7b3f6a
https://doi.org/10.1093/ee/13.6.1511
https://doi.org/10.1093/ee/13.6.1511