Environ. Entomol. 7: 904-909 (1978) One hundred nine species of phytophagous insects from 6 orders and 33 families fed or repro-duced on the thistle, Carduus macrocephalus Desfontaines, a biennial or winter annual in Italy. About 'h the species attacking this plant were polyphagous. Fifteen species were restricted to the tribe Cynareae; and another 16 species were restricted to the subtribe Carduniae _ Ollly 42 of the 109 species were endophagous. Among species host specific enough to permit consideration as biolog-ical control agents, only Psyl/iodes chalcomera (lIliger), Ceuthorrhynchidius horridus (Panzer), and Rhinocyllus conicus (Frolich) have been studied; Ceutorhynchus trimaculatus (F) and Cheilosia grossa (Fallen) are being stu...
Abstract. Controversy exists over estimation of ecological risk in biological control. At present, t...
Reports were scanned in black and white at a resolution of 600 dots per inch and were converted to t...
Ladybird beetles (Coleoptera Coccinellidae) are important predators of aphids and other crop pests, ...
Six Eurasian species of Carduus thistles (Compositae: Cynareael are troublesome weeds in North Ameri...
In Italy, larvae of the syrphid fly, Cheilosia corydon (Harris) (=grossa Fallen), infest the flower ...
The flea beetle, Psylliodes chalcomera, was previously permitted as a biological control agent of Ca...
A survey conducted in central Italy found 126 species of phytophagous insects from five orders and 2...
Nodding thistle receptacle weevil Rhinocyllus conicus and gallfly Urophora solstitialis attack the c...
Classical biocontrol systems are sometimes treated as an exercise in community assembly. As such, th...
Geographical surveys of plant feeders on weeds are essential for finding species which can be studie...
Between the years 1975-1982 the authors, an enthomologist and a botanist, studied the phytophagous a...
The following work deals with the problems of infections of a variety of fruit trees plants met in t...
Yellow starthistle, Centaurea solstitialis (Asteraceae), is an important invasive alien weed in the ...
European fruit lecaniurn, Parthenoleconium corni (Bouche, 1844) (Hem iptera: Coccidae) is a cm mopol...
Philaenus spumarius was recently confirmed as the European vector for the ongoing Xylella fastidios...
Abstract. Controversy exists over estimation of ecological risk in biological control. At present, t...
Reports were scanned in black and white at a resolution of 600 dots per inch and were converted to t...
Ladybird beetles (Coleoptera Coccinellidae) are important predators of aphids and other crop pests, ...
Six Eurasian species of Carduus thistles (Compositae: Cynareael are troublesome weeds in North Ameri...
In Italy, larvae of the syrphid fly, Cheilosia corydon (Harris) (=grossa Fallen), infest the flower ...
The flea beetle, Psylliodes chalcomera, was previously permitted as a biological control agent of Ca...
A survey conducted in central Italy found 126 species of phytophagous insects from five orders and 2...
Nodding thistle receptacle weevil Rhinocyllus conicus and gallfly Urophora solstitialis attack the c...
Classical biocontrol systems are sometimes treated as an exercise in community assembly. As such, th...
Geographical surveys of plant feeders on weeds are essential for finding species which can be studie...
Between the years 1975-1982 the authors, an enthomologist and a botanist, studied the phytophagous a...
The following work deals with the problems of infections of a variety of fruit trees plants met in t...
Yellow starthistle, Centaurea solstitialis (Asteraceae), is an important invasive alien weed in the ...
European fruit lecaniurn, Parthenoleconium corni (Bouche, 1844) (Hem iptera: Coccidae) is a cm mopol...
Philaenus spumarius was recently confirmed as the European vector for the ongoing Xylella fastidios...
Abstract. Controversy exists over estimation of ecological risk in biological control. At present, t...
Reports were scanned in black and white at a resolution of 600 dots per inch and were converted to t...
Ladybird beetles (Coleoptera Coccinellidae) are important predators of aphids and other crop pests, ...