Damage and Occurrence of Pratylenchus vulnus and Paratylenchus sp. on Spray Chrysanthemum, Dendranthema grandiflourm Kitamura
نویسندگان
چکیده
منابع مشابه
Population Dynamics of Pratylenchus penetrans, Paratylenchus sp., and Criconemella xenoplax on Western Oregon Peppermint.
Endoparasitic nematode populations are usually measured separately for soil and roots without a determination of the quantitative relation between soil and root population components. In this study, Pratylenchus penetrans populations in peppermint soil, roots, and rhizomes were expressed as the density within a standardized core consisting of 500 g dry soil plus the roots and rhizomes contained...
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Eighteen species in eight genera of plant-parasitic nematodes were identified from soil samples collected from soybean fields throughout Missouri. The genera represented were Helicotylenchus, Heterodera, Hoplolaimus, Meloidogyne, Paratylenchus, Pratylenchus, Tylenchorhynchus, and Xiphinema. Three fields, each with high densities of Helicotylenchus pseudorobustus, Pratylenchus hexincisus, or Par...
متن کاملEffect of Temperature on Reproduction and Motility of Pratylenchus vulnus.
Reproduct ion of Pratylenchus vulnus Allen and Jensen on rose was repor ted faster at 32.2 C than at 23.9 and 15.6 C (6). Reproduct ion on alfalfa tissue was faster at 25 C than at 20 and 30 C (3), while on 'Lovell ' peach and bush bean, reproduct ion was faster at 28.3 C than at 24.4, 20.6, 16.7, and 12.8 C (1). Populat ions of P. vulnus and other species of root-lesion nematodes are often rai...
متن کاملReactions of Grape Rootstocks to Pratylenchus vulnus and Meloidogyne spp.
Five grape rootstocks were inoculated with 0, 100, 1,000, and 10,000 Pratylenchus vulnus. Dogridge and Saltcreek supported low average total numbers of P. vulnus, 136-705/pot, at 12 months after inoculation. Growth of both rootstocks was not affected. Harmony, Couderc 1613, and Ganzin 1 supported high average total numbers, 6-856 times the inoculum levels. Numbers in Harmony continued to increa...
متن کاملEffects of Pratylenchus vulnus on the growth of sour orange.
Pratylenchus vulnus suppressed the growth of sour orange seedlings in greenhouse experiments. Growth retardation (in height, in trunk diameter, and in dry top and root weights) was observed in inoculated plants growing in two soil types. Population density, 13 months after inoculation, averaged more than 1,000 specimens/gm of fresh root. Anatomical studies showed that P. vulnus prefers to attac...
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ژورنال
عنوان ژورنال: Korean journal of applied entomology
سال: 2008
ISSN: 1225-0171
DOI: 10.5656/ksae.2008.47.4.473