leaf petioles

Listing 1 - 10 from 171 for leaf petioles

Florida Carpenter Ant, Bull Ant, Tortugas Carpenter Ant, Camponotus floridanus (Buckley) and Camponotus tortuganus (Emery) (Insecta: Hymenoptera: Formicidae: Subfamily ormicinae: Tribe Camponotini)
... these honeydew-producing insects or produce nectars will have ants wandering in all directions over leaf surfaces, up and down the stems and trunk. Carpenter ants will also seek out other ... insects or fungi; rotting tree stumps and tree holes or crotches between limbs; under old leaf petioles in palms, especially in and around the inflorescence of coconut palms; under bark, in roots ...
edis.ifas.ufl.edu

Defoliants and Desiccants
... crop may be harvested earlier; Quality grades are higher because of a lower content of leaf trash; Leaf removal facilitates air movement, and thus drier conditions which are favorable for boll- ... resulting in more rapid development of abscission layers. The abscission layer is the zone where leaf petioles meet stems. Once adequately formed, leaves drop from the abscission layer. The older materials ...
edis.ifas.ufl.edu More from this site

Strawberry Pests
... the larvae matures. Symptoms: The adult chews holes into the leaf petioles, which are more conspicuous than the blossom stem stubs and ... a short snout. It cannot fly, but chews characteristic notches around leaf margins and may chew small holes in strawberry fruit. Life ... they lay their eggs. Apply the following treatments where fresh leaf notches are seen, before the blossom period or after harvest: ...
gardenline.usask.ca

Cherry Leaf Spot, HYG-3021-95
... leaf spot is one of the most serious diseases of both sweet and sour cherries in the Midwest. The disease mainly affects the leaves, but lesions may also appear on fruit, petioles ... leaf petioles and fruit pedicels, causing fruit to ripen unevenly. Spots usually do not form on fruit. Causal Organism Cherry leaf ... minimum number of hours of leaf wetness required to produce leaf spot infections caused by ...
ohioline.osu.edu

Phomopsis Cane and Leaf Spot of Grape
... distinctly different diseases, and their control recommendations vary greatly. Disease incidence of Phomopsis cane and leaf spot appears to be increasing in many vineyards throughout the Midwest. Crop losses up ... (Figure 3). Leaves become distorted and die if large numbers of lesions develop. Infections of leaf petioles may cause leaves to turn yellow and fall off. Figure 3. Symptoms on older leaves ...
ohioline.osu.edu More from this site

Horseradish, Commercial Vegetable Production Guides, North Willamette Research and Extension Center
... in rice paddies and in hydroponic greenhouses for the harvest of leaf petioles for the processing market. A new variety called Wasabi Tainung No. ... frozen or fresh paste. In Japan, the fleshy plant stem or leaf petioles of wasabi are also sold fresh in produce markets. The ... to the soil surface as possible. Allow several days between leaf removal and harvest. If bad weather prevents fall harvest, the ...
oregonstate.edu

Rhubarb, Commercial Vegetable Production Guides, North Willamette Research and Extension Center
... dormancy period of temperatures below 40 F to break dormancy and stimulate the production of leaf petioles. Winter conditions in the Pacific northwest easily meet this requirement. When temperatures begin to exceed ... end is not trimmed. Splitting of the petiole will be more serious if the entire leaf is removed. A machine has been developed by USDA Agricultural Engineers and may be available ...
oregonstate.edu More from this site

Potato Leaf Hopper Fact Sheet  -- Bruce MacKellar <MSU Extension >
... inch long. Eggs are inserted in the plant stems and petioles. Nymphs: The immature stages (nymphs) resemble the adults, but are ... on plant stems, leaf petioles, and leaf veins. The nymphs hatch in about 10 days. Like adults, they suck sap from leaf veins and ... leafhopper feeding or deter leafhopper feeding because of inflorescence (or leaf hairs) on the plant leaves. These varieties are currently ...
www.canr.msu.edu

ODIN011 - Entomosporium Leaf Spot on Red Tip
... Control] [Back to Ornamental Disease Notes] [Other Resources] General Information Leaf spot, caused by the fungus Entomosporium maculatum ... leaf spot. Spots similar to those on the leaves can develop on leaf petioles and tender stem growth during prolonged periods of cool, wet weather. Low levels of leaf ... , often result in early and heavy leaf drop. Heavy leaf drop severely reduces the landscape ...
www.ces.ncsu.edu

Wallace W Hansen Native Plants of the Northwest Acer Macrophyllum Big Leaf Maple Catalog
... Information (Ordering, etc.) Updated July 10, 2005 Big Leaf Maple, Oregon Maple, Broadleaf Maple (Acer macrophyllum) ... name that translates into “large leaf” (macro=large, phylum=leaf), you cannot mistake the tree’s ... leaf maple is the only North American maple species to exude a milky sap from its long leaf stalks. These long leaf petioles can attain a length equivalent to that of the leaf. Big leaf ...
www.nwplants.com

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