| sex attraction in bactericera cockerelli (hemiptera: triozidae). | the potato psyllid, bactericera (=paratrioza) cockerelli (šulc) (hemiptera: triozidae), is a major pest of potato. we examined the role of chemical signals in sex attraction, assessing male and female response to male- and female-produced volatile chemicals. in laboratory olfactometer assays, potato psyllid males were attracted to odorants emitted from live females and from solvent extract of females. these results indicate that the female-produced chemicals responsible for attracting males may ... | 2010 | 22127181 |
| 'candidatus liberibacter solanacearum' titers in and infection effects on potato tuber chemistry of promising germplasm exhibiting tolerance to zebra chip disease. | long-term sustainable management of zebra chip (zc) disease of potato requires development of tolerant or resistant germplasm. to this end, 283 potato varieties and breeding clones were infected with the zc putative causal agent 'candidatus liberibacter solanacearum' (lso) by potato psyllid vector inoculations in 2010, 2011, 2012, and 2013. potato germplasm was then examined for development of fresh and fried zc symptoms. over multiple years 29 breeding clones exhibited little to no symptoms in ... | 2015 | 26312966 |
| ovipositional preferences, damage thresholds, and detection of the tomato-potato psyllid bactericera cockerelli (homoptera: psyllidae) on selected tomato accessions. | the tomato-potato psyllid bactericera [paratrioza] cockerelli (sulc) has recently caused losses exceeding 50% on fresh market tomatoes in california and baja, mexico by injecting a toxin that results in a condition known as 'psyllid yellows'. the objectives of this study were to: (i) document oviposition preferences on a range of tomato cultivars; (ii) determine threshold levels for psyllid densities that would cause psyllid yellows on tomatoes within the first three weeks following transplantin ... | 2006 | 16556341 |
| tomato psyllid behavioral responses to tomato plant lines and interactions of plant lines with insecticides. | adult tomato psyllid, bactericerca (paratrioza) cockerelli (sulc) (homoptera: psyllidae), behavioral responses were evaluated for five tomato plant lines and for the interactions of insecticides with four commercial cultivars. plant lines tested included the commercial 'shady lady', 'yellow pear', '7718 vfn', 'qualit 21', and the plant introduction line pi 134417. insecticides included a kaolin particle film, pymetrozine, pyriproxyfen, spinosad, and imidacloprid. psyllids spent significantly mor ... | 2004 | 15279294 |