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Phytoplasmas, vectors and measures for disease control

Phytoplasmas, vectors and measures for disease control | Plant health | Scoop.it

The most widespread phytoplasmas, vectors and measures for disease control in Slovenia


Phytoplasmas, as fastidious wall-less mollicutes, colonize phloem tissue of many plant species, including grapevine and fruit trees. They are transmitted between plants by vegetative propagation and by sap-sucking insect vectors, which enable spread of the diseases.

‘Candidatus Phytoplasma mali’, associated with apple proliferation, ‘Ca. P. prunorum’, associated with European stone fruit yellows and ‘Ca. P. pyri’, associated with pear decline, were detected in several fruit-growing areas of Slovenia. The most widespread phytoplasma on grapevine in Slovenia was the stolbur phytoplasma, (‘bois noir’), but ‘Flavescence dorée’ phytoplasma, associated with serious disease of grapevine, has been detected in Slovenian vineyards.


Mehle N  et al. (2012) The most widespread phytoplasmas, vectors and measures for disease control in Slovenia.- Phytopathogenic Mollicutes 2011(1)2 p 65- 76. Online ISSN : 2249-4677. IndianJournals.com 

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Researchers Discover Green Pesticide for Invasive Citrus Pest Princeps demoleus

Researchers Discover Green Pesticide for Invasive Citrus Pest Princeps demoleus | Plant health | Scoop.it

ScienceNewsline; Biology: According to a new study published in the Journal of Economic Entomology (Vol. 104, No. 6, Dec. 2011) by University of Florida researchers (Lewis et al.), a key amino acid essential for human nutrition is also an effective insecticide against caterpillars that threaten the citrus industry. Namely, Southeast Asian citrus-feeding larvae of Princeps (Papilio) demoleus (L.) were recently introduced into the Americas, causing an imminent threat to citrus production and ornamental flora. In the research the human nutrient amino acid methionine, sprayed on plants, showed toxic effects for larvae, therefore may be a candidate environmentally safe biorational pesticide for use against invasive P. demoleus in the Americas.

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