Abstract:Nel 1958 avevo iniziato alcune prove di allevamento e di aeclimatazione .della ProxpalteUa perniciosi TOWER su piante di Pesco nella zona fruttifera a Sud di Verona (Valle Padana), prove che sono continuate negli anni seguenti. Come ho gi~ riferito in una breve nora (1963), le cortdizioni climatiche si sono dirnostrate favorevoli allo sviluppo dell'Imenottero; la sua diffusione non b stata perS molto fortunata poichb i peschi, che sono fra i fruttiferi i pifi sensibili agli attacchi d'Aspidiotus, sono morti in… Show more
“…Additional introductions are thought to have happened in 1946 and/or 1947 ), but both attempts were apparently unsuccessful (Clausen 1978). In 1958, and again in 1967, a Russian strain obtained via France was released in the Po Valley, Italy, where it established and achieved 60% parasitism within a year after release (Gambaro 1965). Additional releases followed, and overall 'some millions' of E. perniciosi were released in a single region (i.e.…”
v vi Contents 1.7 Aspidiotus nerii BoucHe, Aucuba Scale (Hem., Diaspididae) 1.7.1 Aphytis melinus DeBach (Hym., Aphelinidae) 1.8 Bactrocera oleae (rossi), Olive Fruit Fly (Dip., Tephritidae) Country Number of agents USA (including Hawaii
“…Additional introductions are thought to have happened in 1946 and/or 1947 ), but both attempts were apparently unsuccessful (Clausen 1978). In 1958, and again in 1967, a Russian strain obtained via France was released in the Po Valley, Italy, where it established and achieved 60% parasitism within a year after release (Gambaro 1965). Additional releases followed, and overall 'some millions' of E. perniciosi were released in a single region (i.e.…”
v vi Contents 1.7 Aspidiotus nerii BoucHe, Aucuba Scale (Hem., Diaspididae) 1.7.1 Aphytis melinus DeBach (Hym., Aphelinidae) 1.8 Bactrocera oleae (rossi), Olive Fruit Fly (Dip., Tephritidae) Country Number of agents USA (including Hawaii
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