Zobrazeno 1 - 10
of 67
pro vyhledávání: '"Butler, George D."'
Surveys of whitefly parasites in cotton showed few or none were present during July and October in some areas, preliminary observations of sticky traps show that large numbers of parasites were present in some fields during October.
Externí odkaz:
http://hdl.handle.net/10150/209573
Surveys for adult sweetpotato whitefly parasites on ornamentals in urban areas and in cultivated cotton fields show high parasite activity in urban areas vs. activity in cultivated cotton fields. A previously unreported Drapetis spp. fly was identifi
Externí odkaz:
http://hdl.handle.net/10150/209571
The edges of one of each of five pairs of long staple cotton fields were treated for sweetpotato whiteflies. Treated fields had 61% fewer eggs and 53% fewer nymphs than untreated fields. Adult populations were reduced 64% in the treated fields at the
Externí odkaz:
http://hdl.handle.net/10150/209569
The repellency to adult SPW of 1% Saf -T -Side and 1% Natur'1 Oil was enhanced by the addition of Butracide + Pounce, Butracide + Pyrellin, or a pyrethrum + diatomaceous earth. Several materials containing pyrethrum appeared to improve the repellency
Externí odkaz:
http://hdl.handle.net/10150/209568
Sweetpotato whitefly (SPW), Bemisia tabaci (Gennadius), exhibited high levels of flight activity during daylight hours from July to September. Flight activity in a fallow field in Arizona in late August began as early as 0600 h, peaked between 0800 a
Externí odkaz:
http://hdl.handle.net/10150/208650
Publikováno v:
CALS Publications Archive. The University of Arizona..
Externí odkaz:
http://hdl.handle.net/10150/607077
http://arizona.openrepository.com/arizona/handle/10150/607077
http://arizona.openrepository.com/arizona/handle/10150/607077
Publikováno v:
CALS Publications Archive. The University of Arizona..
Externí odkaz:
http://hdl.handle.net/10150/602179
http://arizona.openrepository.com/arizona/handle/10150/602179
http://arizona.openrepository.com/arizona/handle/10150/602179
Publikováno v:
CALS Publications Archive. The University of Arizona..
Externí odkaz:
http://hdl.handle.net/10150/602181
http://arizona.openrepository.com/arizona/handle/10150/602181
http://arizona.openrepository.com/arizona/handle/10150/602181
Autor:
Butler, George D., Jr.
Publikováno v:
CALS Publications Archive. The University of Arizona..
Externí odkaz:
http://hdl.handle.net/10150/602161
http://arizona.openrepository.com/arizona/handle/10150/602161
http://arizona.openrepository.com/arizona/handle/10150/602161
Autor:
Akey, David H., Butler, George D.
Cotton aphids. Aphis gossypii. from a source near Phoenix. AZ were found to have an optimal developmental temperature of 27.5 °C with a developmental time of 5 days. Fecundity was optimal at 25 °C with 2.85 mean nymphs/day. Both development and fec
Externí odkaz:
http://hdl.handle.net/10150/221233