Symptoms and Signs

60 Pin13 Ακόλουθοι
smut: a group of fungi in the Basidiomycetes that typically releases masses of black dusty teliospores at maturity (corn smut caused by Ustilago zeae)

smut: a group of fungi in the Basidiomycetes that typically releases masses of black dusty teliospores at maturity (corn smut caused by Ustilago zeae)

rust: a disease caused by a specialized group of Basidiomycetes that often produces spores of a rusty color (stem rust of wheat)

rust: a disease caused by a specialized group of Basidiomycetes that often produces spores of a rusty color (stem rust of wheat)

tumor (syn. gall): abnormal swelling or localized outgrowth, often roughly spherical, produced by a plant as a result of attack by a fungus, bacterium, nematode, insect or other organism (crown gall caused by Agrobacterium tumefaciens on apple)

tumor (syn. gall): abnormal swelling or localized outgrowth, often roughly spherical, produced by a plant as a result of attack by a fungus, bacterium, nematode, insect or other organism (crown gall caused by Agrobacterium tumefaciens on apple)

scab: roughened, crustlike diseased area on the surface of a plant organ (apple scab caused by Venturia inaequalis)

scab: roughened, crustlike diseased area on the surface of a plant organ (apple scab caused by Venturia inaequalis)

zonate: pertaining to a targetlike development of tree canker, characterized by successive, perennial rings of callus; referring to any symptom appearing in concentric rings (zonate canker caused by Nectria galligena in apple)

zonate: pertaining to a targetlike development of tree canker, characterized by successive, perennial rings of callus; referring to any symptom appearing in concentric rings (zonate canker caused by Nectria galligena in apple)

yellows: disease characterized by chlorosis and stunting of the host plant (aster yellows phytoplasma infection in romaine lettuce)

yellows: disease characterized by chlorosis and stunting of the host plant (aster yellows phytoplasma infection in romaine lettuce)

witches' broom: disease symptom characterized by an abnormal, massed, brushlike development of many weak shoots arising at or close to the same point (witches' brooms on Douglas-fir caused by dwarf mistletoe, Arceuthobium sp.)

witches' broom: disease symptom characterized by an abnormal, massed, brushlike development of many weak shoots arising at or close to the same point (witches' brooms on Douglas-fir caused by dwarf mistletoe, Arceuthobium sp.)

wilt: drooping of leaves and stems from lack of water (inadequate water supply or excessive transpiration); vascular disease that interrupts normal water uptake (wilted tobacco)

wilt: drooping of leaves and stems from lack of water (inadequate water supply or excessive transpiration); vascular disease that interrupts normal water uptake (wilted tobacco)

white rust: common name usually used for diseases caused by Oomycetes in the genus Albugo (Albugo candida on a brassica leaf).

white rust: common name usually used for diseases caused by Oomycetes in the genus Albugo (Albugo candida on a brassica leaf).

white rot (of wood): type of wood decay resulting from enzymatic action of fungi; it degrades all components of wood, including lignin, leaving the wood light-colored and spongy

white rot (of wood): type of wood decay resulting from enzymatic action of fungi; it degrades all components of wood, including lignin, leaving the wood light-colored and spongy

Pinterest
Αναζήτηση