Investigationes on population dynamics and mortality of Phyllocnistis citrella in western Sicily (Italy)

Population dynamics and mortality of P. citrella, and its natural enemies with parasitism levels in two different citrus orchards, sprayed and unsprayed, were investigated. The effect of host density on percentage parasitism and mortality was calculated by regression analyses. In both sites, over the 3-years period from 2002 to 2004, P. citrella was detected during the summer months and it was not found during the first flush. Population levels were low, never exceeding 3.0/leaf. P. citrella began to increase from June in 2002-2003 and from July in 2004. The monthly percentage parasitism of P. citrella in sprayed orchard fluctuated from 0 to 19%, while in unsprayed from 0 to 30%. High morta…

Studio sul feromone sessuale di Lysiphlebus testaceipes Cresson

Effetto del "mating status" sul foraggiamento di Lysiphlebus testaceipes Cresson

Indagini sulla presenza di Prays oleae in oliveti a conduzione biologica della Sicilia occidentale

Investigations on presence of Prays oleae in organic olive orchards of western Sicily. This paper reports a study on the population dynamics of the olive moth, Prays oleae (Bern) (Lep., Plutellidae) in four organic olive orchards in western Sicily (Italy), from 2007 to 2010. The influence of the phytophagous on the fruit drop was detected. Also, the efficacy of treatments with Bacillus thuringiensis var. kurstaki on damage reduction was evaluated. Flight trend was monitored using delta-wing traps (3/ha) containing the sexual pheromone ((Z)-7-tetradecenal), placed in each olive orchard. Traps were hung in the inner zone of the canopy to a height of 1.50 m, and checked weekly from May to 2-3 …

Population dynamic of Phyllocnistis citrella Stainton (Lepidoptera: Gracillariidae) and parasitism levels in western Sicily (Italy).

Evolution of Phyllocnistis citrella Stainton (Lepidoptera, Gracillaridae) and its parasitoids in the last five years in citrus orchards of the western Sicily (Italy)

Ecological infrastructures in a vineyard of West Sicily

Management of uncomplicated arterial hypertension in pregnancy

Sex pheromone of Lysiphlebus testaceipes (Hymenoptera Braconidae)

Analisi del comportamento delle femmine vergini e accoppiate di Lysiphlebus testaceipes Cresson (Hymenoptera; Braconidae) in relazione alla dimensione delle colonie afidiche

Strategie di controllo di Bactrocera oleae (Rossi) con metodi alternativi agli interventi convenzionali in oliveti biologici della Sicilia occidentale

This work reports studies on the population dynamics and safe control strategies of Bactrocera oleae in four unsprayed olive groves of western Sicily from 2007 to 2010. The main management tools for B. oleae evaluated were the“Attract and Kill” lures (Ecotrap Vioryl), the use of sardines (traditional practice) and Nu-lure (innovative) and the spinosad (innovative) which is a selective insect control product produced by the fermentation of a naturally occurring soil bacterium, Saccharopolyspora spinosa. Flies trend were carried out by pheromone traps and the level of infestation counting the number of fruits with pest eggs, larvae and pupae and hole hatching. Results showed that in all olive…

Some cardiac effects during short-acting beta2-agonist theraphy in COPD subiects

The role of cuticular hydrocarbons of Lysiphlebus testaceipes Cresson (Hymenoptera, Braconidae) in the sex recognition behaviour

Evolution of Phyllocnistis citrella Stainton (Lepidoptera, Gracillariidae) and its parasitoids in the last five years in citrus orchards of western Sicily (Italy)

Phyllocnistis citrella Stainton (Lepidoptera: Gracillariidae), is native to India, China, and other Southeast Asian countries that has spread rapidly since 1993 to all citrus-growing areas of the world. In Italy, the pest was first discovered during the autumn of 1994, in some citrus groves of Sardinia and, subsequently, in Sicily in the summer of 1995 showing a very rapid range expansion in other citrus-growing regions of Italy. Currently, damage to mature trees under typical Mediterranean conditions is considered only aesthetical, but P. citrella causes economic problems on young trees, nurseries, and overgraftings. Since the first occurrence of the citrus leafminer in Sicily, several ind…

AN IPM PROGRAM FOR PHYLLOCNISTIS CITRELLA STAINTON IN SICILY CITRUS NURSERIES