Results 151 to 160 of about 86,766 (183)

Growth and Yield Response of Rice to Rice Water Weevil Injury

Environmental Entomology, 1997
Analysis of larval and pupal age-structured data indicates that the soil core sampler–soil separation method underestimates the abundance of early instar rice water weevil, Lissorhoptrus oryzophilus Kuschel. The estimates for bias were used to derive seasonal larval age-structured population estimates for 4 yr of field data from 2 experiments ...
G. W. Wu, L. T. Wilson
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Rice Water Weevil Control, 1986

Insecticide and Acaricide Tests, 1987
Abstract Rice was planted 22 May on loessial silt loam soil at the Macon Ridge Branch of the Northeast Research Station. The experimental design was a randomized complete block design with 4 replications. All plots were sampled for root feeding larvae by taking 3 soil cores (9 cm dia × 10 cm deep) from drills rows, once a week, for 4 ...
openaire   +1 more source

Rice Stink Bug and Rice Water Weevil Control, 1982

Insecticide and Acaricide Tests, 1984
Abstract Insecticides were tested on heading rice at the Rice Res. and Ext. Cent, at Stuttgart, Arz., for control of rice stink bug and rice water weevil adults. Both insect species were exposed to insecticides by confining them together on rice panicles with organdy sleeve cages (30 cm diam. by 55 cm long). First, cages were placed over
Fahmy El Abdallah, D. R. Morgan, N. P. Tugwell   +2 more
openaire   +1 more source

Taxonomic Identification of the Rice Water Weevil, Lissorhoptrus oryzophilus 1, at Morelos, Mexico

The Southwestern entomologist, 2019
. Adult male and female rice water weevils from fields of rice, Oryza sativa L., in the Mexican state of Morelos were collected for taxonomic identification. Based on morphological characteristics of male and female individuals, the species of rice water
V. Castrejón-Gómez
semanticscholar   +1 more source

Control of Rice Water Weevil with Dimilin, 1989

Insecticide and Acaricide Tests, 1990
Abstract The experiment was conducted at the Texas A&M University Agricultural Research and Extension Center at Beaumont. The experimental design was a randomized complete block with 5 treatments and 4 replicates. Each plot was 6 × 13 ft surrounded by a metal barrier to prevent contamination among plots.
M. O. Way, R. G. Wallace
openaire   +1 more source

Resistance to Aldrin in the Rice Water Weevil in Louisiana

Journal of Economic Entomology, 1967
Laboratory studies conducted during 1965 and 1966 using the topical-application technique demonstrated resistance to aldrin in the rice water weevil, Lissorhoptrus oryzophius Kuschel, in Louisiana. High levels (100- to two-fold) of resistance were found in weevils from Alsatia, Crowley, and Ville Platte.
J. B. Graves, T. R. Everett, R. D. Hendrick   +2 more
openaire   +1 more source

Control of Rice Water Weevil with Carbofuran, 1991

Insecticide and Acaricide Tests, 1992
Abstract Carbofuran was evaluated for control of RWW at Stuttgart (Crowley silt loam soil) and Keiser (Sharkey silt clay soil), AR. The experimental design was a randomized complete block with 4 replications. Plot size was 9 rows with 17.8 cm spacing × 4.88 m.
openaire   +1 more source

Investigating plant chemicals and trade-offs between adult preference and larval performance of the rice water weevil

Journal of Pest Science, 2021
Qiyun Wang, Wei Huang, Jialiang Zhang, Dingli Wang, Wandong Yin, Jianqing Ding   +5 more
semanticscholar   +1 more source

Rice Water Weevil Resistance to Aldrin in Texas

Journal of Economic Entomology, 1968
Data from small-plot tests with aldrin as a seed treatment to control Lissorhoptrus oryzophilus Kuschel conducted over a 10-year period indicate development of resistance during the period 1964 through 1967. Topical applications of aldrin to adult rice water weevils from 5 locations in the rice-growing areas of Texas indicated 3 General levels of ...
openaire   +1 more source

The Rice Water Weevil Problem in Arkansas1

Journal of Economic Entomology, 1932
Dwight Isely, H. H. Schwardt
openaire   +1 more source