plant disease


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plant disease

the disruption of normal growth and metabolism in plants leading to reduced viability and even death. Plant diseases may begin with physical attack of the plant by pests such as insects, slugs, mites, birds and other animals, some of which may be VECTORS of plant PATHOGENS. Often, however, pathogens enter the plant via the wounds caused by animal pests. Other pathogens, such as cereal rusts, are able to penetrate plant tissue on their own, often via leaf stomata. Many plants produce special chemicals called PHYTOALEXINS in response to injury, which have an effective defensive function.
References in periodicals archive ?
Plant Diseases and Their Management in Organic Agriculture
The Institutes also provide plant disease diagnostic services to farmers and stakeholders.
WELLINGTON (CyHAN)- New Zealand scientists are claiming a world first in using South American plant diseases to control a notorious weed.
Polymerase chain reaction (PCR)-based tests can be used to diagnose plant diseases.
A DEADLY tree and plant disease has been found for the first time in privately-owned woodland in Wales the, Forestry Commission Wales (FCW) revealed yesterday.
Following a personal account of the career development of a "cell biological" plant pathologist, authors discuss topics including national and international plant disease diagnostic networks, and the evolution, ecology, biology, and management of specific pathogens (microbes, fungi, and parasitic nematodes).
A rare plant disease is tightening its grip at one of the region's most treasured beauty spots.
With claims that climate change will make the world wetter and increase the risk of plant disease, EU proposalsto ban major pesticides seem ill-timed if growers lose key chemicals from their crop protection arsenals.
Time is not on their side as the ageing collection faces a threat from a cruel plant disease that has the potential to wipe out some of the rarest species in the garden.
It would seem that despite the numerous warning signs around the park alerting visitors to the plant disease Phytophthora ramorum, which is attacking plants with devastating consequences, some dog owners are ignoring the requirement to keep their dogs on a lead.
7 (VOI) Co A plant disease has popped up in Diwaniya's orchards, threatening thousands of palm trees in the province, according to agricultural officials and grove owners who attributed the spread of the disease to the lack of insecticides and the absence of adequate government support.
GARDENERS are being warned to remain vigilant following the discovery of a rare and potentially devastating plant disease in a rhododendron on the Donegal/Derry border.