Grape phylloxera is a root-feeding pest of grapevines. In Australia, phylloxera infested vineyards are subjected to quarantine restrictions and early detection remains vital for the timely implementation of post-outbreak quarantine protocols. Current detection methods rely on time-consuming ground surveying which involves detailed examination of grapevine (Vitis vinifera L.) root systems. Leaf ...

abstract balanced nutrition and soil organic mater are among most important factors affecting yield and quality of grape (vitis vinifera cv.peykani). humic acid as an organic acid derived from humus and other organic sources, in accompany with zinc, and acetic acid can reduce deficiency symptoms in grape. to study the effects of zinc, humic acid and acetic acid on yield and yield components, an...

Aim of study: Six thinning treatments were studied to improve the chemical composition and quality grapes cv. ‘Shiraz’ under two vine architectures (vase trellis). Area Spain, from 2015 2016. Material methods: The following applied during four consecutive crop seasons: T0, control; T1, removal 33% clusters (75 BBCH stage); T2, (85 T3, leaves at base branches; T4, branches together with clusters...

Vine mealybug Planococcus ficus Signoret (Hemiptera: Pseudococcidae) is an important phloem-feeding pest species in many grapevine producing areas worldwide. The economic damage of P. thought to be mainly caused by sooty mould on infested grape clusters and transmission plant viruses. Direct feeding plants (Vitis vinifera, L.) has only been vaguely described or otherwise completely discarded. p...

Grapevine leafroll-associated virus 3 (GLRaV-3) is associated with grapevine leafroll disease, one of the most economically important viral diseases of grapevines. This disease impacts on both vine health and grape quality; reduction in yield, brix and wine colour are among its detrimental effects. Many methods, including serological and molecular procedures, have been developed for the detecti...

Hail events have the potential to destroy grapevine shoots, reduce yield, and inflict economic loss upon growers. As a result, many grape growers adopted use of hail-netting mitigate vine damage. Although has been observed prevent hail damage, Texas High Plains expressed concerns regarding effects may on canopy microclimate, health, fruit maturity, quality yield. Therefore, over three growing s...

This study looked at regulated deficit irrigation (RDI) on leafhoppers in the genus Erythroneura (Erythroneura elegantula Osborn, or western grape leafhopper, and Erythroneura variabilis Beamer) (Hemiptera: Cicadellidae), which are serious pests of cultivated grape (Vitis vinifera L.) in California. RDI is an irrigation strategy that reduces irrigation during a critical point in the phenology o...

Zero-valent iron nanoparticles (nZVIs) are often used in environmental remediation. Their high surface area that is associated with their high reactivity makes them an excellent agent capable of transforming/degrading contaminants in soils and waters. Due to the recent development of green methods for the production of nZVIs, the use of this material became even more attractive. However, the kn...

Organismal diversity among and within species may affect ecosystem function with effects transmitting across ecosystem boundaries. Whether recipient communities adjust their composition, in turn, to maximize their function in response to changes in donor composition at these two scales of diversity is unknown. We use small stream communities that rely on riparian subsidies as a model system. We...