year needles

Listing 1 - 10 from 237 for year needles

Carbon, water and nitrogen relations in evergreen and deciduous conifers
... spruce, whereas evergreen spruce needles displayed a higher water use efficiency. However, because of foliage longevity and thus lower carbon investment in current-year foliage, spruce trees achieved ... a higher water demand and nitrogen investment in the current-year needles compared with evergreen trees that depend on longevity of functioning needles. ISSN 0829-318X Copyright © 2002–2006 Heron ...
heronpublishing.com

Needle Diseases on 2-Needled Conifers in Ohio, HYG-3071-96
... second year needles. Trees growing in sites which are wet early in the year are ... needles during a rainy or damp period. Figure 5. Yellowing of previous year's needles caused by Cyclaneusma. Figure 6. Brown bands transversing needles of Cyclaneusma-infected pine. Figure 7. Fruiting pustules on needles ... can occur on 2-year-old needles from spring to fall. Current year needles can be infected ...
ohioline.osu.edu

larch genus description
... (Larix) Needles are deciduous (fall from the tree in winter). Small, woody cones (1-2" long). Most needles are borne in groups of 20-40 on thick, woody spur shoots; current-year needles are borne singly on slender pegs. Larches are different from most conifers because they're deciduous--they lose their needles each fall. In addition, their needles are arranged ...
oregonstate.edu

... year needles remain green and no symptoms of the disease can be seen on them. Second year needles, or those whose initial growth occurred the previous year, turn purple to brown during the current year. Infected third year needles, or those needles whose initial growth ...
www.extension.umn.edu

Selected Publications
... Scots pine (Pinus sylvestris) needles. Physiologia Plantarum 95: 581-590. Strand, M. 1995. Inhibition of photosynthesis in current-year needles of unfertilized and fertilized Norway spruce [Picea abies (L.) Karst.] during autumn and early winter. Trees 9: 332-340. Strand, M. & Lundmark, T. 1995. Recovery of photosynthesis in 1-year-old needles ...
www.genfys.slu.se

Rhizosphaera Needle Cast
... - The disease is usually first evident on lower branches and then works upward gradually. Second-year needles turn a purple or brown color and eventually fall from the tree. After several successive ... fungus are not evident on these trees.) Spread - Rhizosphaera overwinters in infected needles on the tree and on needles that have fallen to the ground. The fungus is spread by splashing and ...
www.ipm.iastate.edu

Pinus strobus L
... proportion outgrow the competing vegetation. Similar results have been reported for 9- to 20-year-old underplanted white pine in Maine, Canada, and South Carolina (16,28,71). White ... linearis, which attacks first-year needles; Scirrhia acicola, which can cause spring shedding of all needles; and Capnodium pini, which causes surface sooty mold on aphid secretions on needles. Three categories of ...
www.na.fs.fed.us

Gardening the year 'round by Alice Brantley Yeager 0609
... John Silveira Columnists Available Now In The General Store Gardening the year 'round By Alice Brantley Yeager Normally, we gardeners tend to make ... using them. Many of us like to spread organic matter— pine needles, leaves, etc.—directly on rows or beds in the fall to ... hot beverage, and dream of a picture-perfect garden for next year. Despite inclement weather, the gardening cycle can begin now when ...
www.backwoodshome.com

Evergreen Gardenworks Descriptive Catalog: Picea
... dark green. Picea jezoensis is slightly larger, faster growing with green needles from about 3/4 to 1 inch long. Picea jezoensis ... flattened globe or mound with growth of about one inch a year. Needles are rather far apart and plant is somewhat open. Foliage color ... bonsai plant with very short bright green needles (about 1/2inch). Very slow growing, four year old plants may only be 6 inches ...
www.evergreengardenworks.com

Continue to water trees and shrubs, especially this year
... and shrubs, especially this year Continue to water trees and shrubs, especially this year By Nancy Rose, Extension horticulture educator ST. PAUL, Minn. (10/24/ ... though your trees and shrubs need no more care for the year. But this is actually a critical time to continue to water ... spread a two- to three-inch layer of wood chips, pine needles or other mulch in a wide circle around the base of the ...
www.extension.umn.edu

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