Thirty-two weeds commonly found in the organic soils of southwestern Quebec were evaluated for host suitability to a local isolate of the northern root-knot nematode Meloidogyne hapla under greenhouse conditions. Galls were observed on the roots of 21 species. Sixteen of the 21 had a reproduction factor (Pf/Pi = final number of M. hapla eggs and juveniles per initial number of M. hapla juvenile...

Tra i compiti principali di una Società Scientifica di settore rientra sicuramente l’offrire ai pubblici decisori un forte contributo consultivo, utile a orientare verso una programmazione sanitaria sostenibile ed efficiente. GICR-IACPR, con la sua rete capillare di delegati, ha sempre mostrato una grande attenzione per le politiche sanitarie regionali, favorendo la costituzione di commissioni ...

Abstract Eudendrium capillaroides Schuchert, 2008 has not been reported since its original description. The new and abundant material found in Ceuta, southern coast of the Strait Gibraltar, allows us to refine morphological diagnosis this species. is characterized by small monosiphonic colonies, a dense ring at base hydranth, it seems have preference for growing on other hydroids. Male gonophor...

The commercial release of transgenicmaizewith resistance to rootworms incorporated with glyphosate tolerance has become a reality, and questions have arisen regarding the impact of grassy weed phenology on the biology of the western corn rootworm, Diabrotica virgifera virgifera LeConte. A study to determine the impact of host plant phenology on the survivorship (percentage larval recovery), gro...

We have collated and reviewed published records of the genera Panicum and Setaria (Poaceae), including the domesticated millets Panicum miliaceum L. (broomcorn millet) and Setaria italica (L.) P. Beauv. (foxtail millet) in pre-5000 cal b.c. sites across the Old World. Details of these sites, which span China, central-eastern Europe including the Caucasus, Iran, Syria and Egypt, are presented wi...

The host range of the corn cyst nematode, Heterodera zeae, recently detected in Maryland, was investigated. A total of 269 plant entries, representing 68 families, 172 genera, and 204 species, was inoculated with cysts or a mixture of eggs and second-stage juveniles of H. zeae. The host range of the Maryland population of H. zeae was limited to plants of the Gramineae and included 11 tribes, 33...