The bronze bug, Thaumastocoris peregrinus Carpintero & Dellape (Heteroptera:Thaumastocoridae), is an exotic emerging pest in Eucalyptus commercial forests in South America, Africa and southern Europe. Information on the chemical communication system and reproductive ecology of this insect is scant, and it may be relevant for designing management strategies for eucalypt plantations. Adults and nymphs usually aggregate in the field, possibly by means of chemical signals. Males emit large amounts of 3-methyl-2-butenyl butyrate, which attracts conspecific adult males but not females.

The bronze bug, Thaumastocoris peregrinus Carpintero & Dellape (Heteroptera: Thaumastocoridae), is an exotic emerging pest in Eucalyptus commercial forests in South America, Africa and southern Europe. Information on the chemical communication system and reproductive ecology of this insect is scant, and it may be relevant for designing management strategies for eucalypt plantations. Adults and nymphs usually aggregate in the field, possibly by means of chemical signals. Males emit large amounts of 3-methyl-2-butenyl butyrate, which attracts conspecific adult males but not females.

Galactomannans from the endosperm of mature seeds of Prosopis affinis were isolated following different extraction procedures in yields of up to 64%. The polysaccharides were characterized by HPLC, GC-MS, and NMR spectroscopy, and their physicochemical properties were studied by SEC/MALLS-QUELS/RI and rheological methods. The monosaccharide composition of the extracted galactomannans showed only mannose and galactose in a ~1.5 ratio, similar to galactomannans found in guar gum and obtained from other Prosopis species.

Oviposition-site selection may be greatly affected by competitive plant-mediated interactions between phytophagous insects but these interactions have been poorly investigated on trees. Here, we evaluated the potential interaction between two invasive pests of Eucalyptus trees, the red gum lerp psyllid, Glycaspis brimblecombeiMoore (Hemiptera, Sternorrhyncha:Aphalaridae), and the bronze bug, Thaumastocoris peregrinusCarpintero et Dellapé (Heteroptera:Thaumastocoridae). We assessed the effect of the co-occurrence of G. brimblecombei on the selection of feeding and oviposition sites by T.

Research networks provide a framework for review, synthesis and systematic testing of theories by multiple scientists across international borders critical for addressing global-scale issues. In 2012, a GHG research network referred to as MAGGnet (Managing Agricultural Greenhouse Gases Network) was established within the Croplands Research Group of the Global Research Alliance on Agricultural Greenhouse Gases (GRA).

Research networks provide a framework for review, synthesis and systematic testing of theories by multiple scientists across international borders critical for addressing global-scale issues. In 2012, a GHG research network referred to as MAGGnet (Managing Agricultural Greenhouse Gases Network) was established within the Croplands Research Group of the Global Research Alliance on Agricultural Greenhouse Gases (GRA).

ABSTRACT. Diseases remain a yield-limiting factor for crops despite the availability of control measures for many pathogens. Indigenous soil microorganisms can suppress some plant pathogens, yet there is little systematic information on the effects of cropping systems on disease-suppressive populations in soil. Streptomyces have been associated with suppression of plant diseases in several naturally-occurring disease-suppressive soils.

Fragole e, soprattutto mirtilli, alimentano da alcuni anni una fiorente filiera produttiva che genera anche un discreto flusso esportativo. Cile, Argentina e Brasile i Paesi piu attivi, anche sul fronte dell'innovazione tecnica e varietale.

Fragole e, soprattutto mirtilli, alimentano da alcuni anni una fiorente filiera produttiva che genera anche un discreto flusso esportativo. Cile, Argentina e Brasile i Paesi piu attivi, anche sul fronte dell'innovazione tecnica e varietale.

Abstract: Modeling genotype by environment interaction (GEI) is one of the most challenging aspects of plant breeding programs. The use of efficient trial networks is an effective way to evaluate GEI to define selection strategies. Furthermore, the experimental design and the number of locations, replications, and years are crucial aspects of multi-environment trial (MET) network optimization. The objective of this study was to evaluate the efficiency and performance of a MET network of sunflower (Helianthus annuus L.).