Y11Z13-16Ac
Pine processionary moth sex pheromone
NOMENCLATURE: Approved name: (Z)-hexadec-13-en-11-ynyl acetate. Other names: Pine processionary moth sex pheromone; Y11Z13-16Ac; Z13Y11-16Ac. CAS RN: [78617-58-0] (Z)-hexadec-13-en-11-ynyl acetate.
SOURCE: Isolated from the abdomens of virgin female pine processionary moths (Thaumeto... |
yard
harvesting 1. a place where logs are accumulated 2. to convey logs or trees to a landing, particularly by cable, balloon, or helicopter logging systems -see forward, skid
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Source: Dictionary of Forestry (1998) published by the Society of American Foresters, 5400 Grosvenor Lane, Bethesda, MD 20814-2198. Not for further reproduction. |
yarder
harvesting a system of power-operated winches and a tower used to haul logs from a stump to a landing -synonym mobile yarder
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Source: Dictionary of Forestry (1998) published by the Society of American Foresters, 5400 Grosvenor Lane, Bethesda, MD 20814-2198. Not for further reproduction. |
yarding
harvesting 1. a place where logs are accumulated 2. to convey logs or trees to a landing, particularly by cable, balloon, or helicopter logging systems -see forward, skid
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Source: Dictionary of Forestry (1998) published by the Society of American Foresters, 5400 Grosvenor Lane, Bethesda, MD 20814-2198. Not for further reproduction. |
Yeast
See also: Mould
A fungus which reproduces by budding. Plant pathologists should not use the expression 'fungi and yeasts' to cover mycelial and budding microfungi. (BSPP) |
Yellow star-thistle bud weevil
Phytophagous weevil
NOMENCLATURE: Approved name: Bangasternus orientalis Capiomont. Other names: Yellow star-thistle bud weevil.
SOURCE: Bangasternus orientalis is native to southern Eurasia and the Mediterranean basin.
PRODUCTION: The weevil is raised on yellow star-thistle plants.
TARGET :PESTS: Yellow star-thistle (<... |
Yellow trap
A method of sampling or pest control using a sticky yellow board, or water-filled container, the colour of which is highly attractive to certain insect groups, particularly aphids. Other colours are attractive to other insect groups. |
Yellows
Now used mainly as a name for diseases in which the most conspicuous symptom is a (bold) yellowing of normally green tissues. If only part of an organ, such as a leaf blade, is affected the transition between yellow and green tissue is often sharp, but not related to the structure of the leaf itself. The name tends to be used (a) of virus diseases, (b) of diseases now attributed to mycoplasmas. It... |
yellow-stain
Deutsch: Gelbverfõrbung
Español: decoloración amarilla [definition]
Français: jaunissement du bois [definition]
Portugués: decoloração amarela
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yema (planta)
English: buds
Portugués: gemas (plantas)
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