| impacts of the adventive psyllid arytainilla spartiophila (hemiptera: psyllidae) on growth of the invasive weed cytisus scoparius under controlled and field conditions in california. | the postrelease impact of weed biological control agents on their target weeds is rarely assessed. this study focuses on the impacts of the univoltine broom psyllid arytainilla spartiophila forster on the growth of its target weed, the invasive shrub scotch broom, cytisus scoparius (l.) link (fabaceae), in california. arytainilla spartiophila is an adventive species that has been present in north america for several decades. in a greenhouse experiment, plant growth as measured by both height and ... | 2016 | 26628515 |
| meiotic karyotypes in males of nineteen species of psylloidea (hemiptera) in the families psyllidae and triozidae. | meiotic karyotypes in males of 16 species (assigned to 9 genera and 7 subfamilies) ofthe family psyllidae and 3 species (assigned to 3 genera of the subfamily triozinae) of the family triozidae are described for the first time. the first data on the genus ligustrinia are presented. all the species were shown to exhibit the modal karyotype for psyllids, 2n = 24 + x, except bactericera nigricornis and arytainilla spartiophila, in which 2n = 24 + xy and 2n = 22 + x were found, respectively. the kar ... | 2007 | 17687931 |