Sexual selection in relation to pest management strategies, Ecology and behavior of ground beetles (Coleoptera: Carabidae), Floral resource utilization by solitary bees (Hymenoptera: Apoidea) and exploitation of their stored foods by natural enemies, Geographic structure of insect populations: gene flow, phylogeography, and their uses, Semiochemical parsimony in the Arthropoda, Action thresholds, insecticide application decision making, Alley cropping affecting insect pest densities/plantation crops/cacao/coffee/Mountain agriculture, Chemical control/ Pesticides/bees pollination, Farmer knowledge, perceptions, practices, extension farmer training, Injury, damage, yield loss from insect pests, Integrated pest management (IPM)/ bio-ecological studies, Miscellaneous/Stored product/Horticulture pests/Root and Tuber crops/fruit/bananas, coffee, cacao, Pests affected by intensive rice cropping / cropping systems / farming systems/green revolution/water management/Amazon, Plant feeding mites / predatory mites/ medical mites and ticks, Plant parasitic nematodes affected by rice cropping systems/nematode interactions, Rainfed wetland / tidal wetlands/deepwater rice pests, Rice ripening stage [Part 2 seed pests, dirty panicle], Rice vegetative stage rice pests [Part 1], Rice vegetative stage rice pests [Part 2], Taxonomy, nomenclature, pest biotypes/biogeography/.
Two root/soil core samples per plot were taken in Lake Arthur site and three core samples were taken per plot at the Crowley site. 1982.
Lanka S. K., D. C.Blouin, and M. J.Stout.
Fields used in this series of experiments have been in rice-fallow rotation for over 20 yr. Means followed by the same letter in each column are not significantly different (P = 0.05) according to Tukey’s HSD. , CS1 maint: BOT: original-url status unknown (, Last edited on 10 September 2020, at 01:18, "Rice Weevil, Sitophilus oryzae (Coleoptera: Curculionidae)", https://en.wikipedia.org/w/index.php?title=Rice_weevil&oldid=977632504, Creative Commons Attribution-ShareAlike License, Longitudinally elliptical punctures on pronotal dorsum, Punctures on pronotal dorsum typically nearly circular, rarely elliptical, Pronotal punctures are separated by a flat, median, longitudinal puncture-free zone, Pronotal punctures are nearly equally spaced apart, and pronotum typically has no median puncture-free area (rarely has a narrow puncture-free median zone), Less than 20 pronotal punctures along the approximate midline, running from neck to scutellum, More than 20 pronotal punctures along the approximate midline, running from neck to scutellum (not reliable for individuals not reared on corn, which are typically smaller), Scutellar elevations typically closer together compare to their longitudinal length, Scutellar elevations typically farther apart compared to their longitudinal length, Scutellar elevations typically extend longitudinally approximately more than halfway down the scutellum, Scutellar elevations typically extend longitudinally approximately halfway down the scutellum, Proepimera meets behind the fore coxae and along the posterior edge, has a distinct notch along the posterior edge at the site of the meeting point, Proepimera meets behind the fore coxae and has a barely discernible notch along the posterior edge at the site of the meeting point, Male aedeagus is smooth and shiny on the dorsal surface, Male aedeagus has two dorsal, longitudinal grooves, Epipharyngeal rods of larvae have virtually the same width throughout, Epipharyngeal rods of larvae tapering apically, Lateral lobes of Y-shaped sclerite of female genitalia not tapering and rounded at apex, Lateral lobes of Y-shaped sclerite of female genitalia tapering and pointed at apex, Less than 5 sensory organs at the tip of the labial palps of larvae, More than 5 sensory organs at the tip of the labial palps of larvae, This page was last edited on 10 September 2020, at 01:18. The experimental design at this site was identical to that of the Crowley site in 2015 and 2016.
Volume 41, 501 pages. Two strategies for using insecticides are employed in rice in the southern United States, insecticidal seed treatments and foliar applications made at or near the time of flooding.
In: Thomas E. Mittler, Frank J. Radovsky, Vincent H. Resh (editors). Females lay 2-6 eggs per day and up to 300 over their lifetime. It is naturally distributed from Mexico to Canada and has spread to many countries in Central America. The reasons for this pattern are unclear, but densities in first core samples were also lower than in second core samples, and may not have been high enough for differences among varieties to be reliably expressed. Experimental plots at this site historically suffer high weevil pressure. Volume 41, 501 pages. Japanese Journal of Applied Entomology and Zoology 26 (1): 74-79. Palo Alto, California: Annual Reviews Inc. Chapter 8 BloomquistChapter 8. The MANOVA showed that variety had a marginally significant effect on size categories of surviving larvae (Wilk’s Lambda test; F = 1.96, P = 0.054).
Overwintering of the Rice Water Weevil, Lissorhoptrus oryzophilus KUSCHEL (Coleoptera: Curculionidae) under Snow and Freezing Conditions at a High Elevation. 2011). For greenhouse experiments, effects of variety on numbers of eggs, first instars, late instars, and percentage of larval survival were also analyzed separately. Shun’ichi MIYAI.
According to Perrin (1977), plant height was considered to be a factor that influenced insect pest movement within cropping systems. Data from field evaluations over several years at two locations allowed us to assess the stability of expression of resistance.
The densities of first instars were determined from the second plant that was removed from each pot after 5 d of adult infestation.
In: Thomas E. Mittler, Frank J. Radovsky, Vincent H. Resh (editors). In 2015, lowest larval densities were found in plots of ‘Jefferson’.
How to get rid of rice weevils naturally Use bay leaves in food containers. Rice weevils are a small insect, about 1/16 to 1/8 of an inch long.
Late instars densities were highest in variety ‘Jupiter’, intermediate in ‘XL753’, and lower in the remainder of the varieties (Table 3). Experiments were conducted in a greenhouse on the campus of Louisiana State University.
Forecast of the Time of Occurrence of the Overwintered Adults of the Rice Water Weevil, Lissorhoptrus oryzophilus KUSCHEL (Coleoptera: Curclionidae) at Hibernating sites. Insect pests of beans in Africa: their ecology and management. Japanese Journal of Applied Entomology and Zoology 29 (1): 67-72. In 2015, 2016, and 2017, significant differences in larval densities were only found in the second core samplings.
Density—yield relationships for rice water weevil on rice for different varieties and under different water management regimes. 2001), nor was it observed in a similar, recently published study from Texas (Vyavhare et al.
The first approach involves the prophylactic use of insecticidal seed treatments that primarily target the larval stage of the rice water weevil.
Japanese Journal of Applied Entomology and Zoology 27 (3): 233-236.
The granary weevil is more cylindrical than the rice or maize weevil and is about 1/5-inch long. ), whitebacked planthopper (Sogatella furcifera Horvath), and green leafhopper (Nephotettix virescens), and against the rice gall midge (Orseolia oryzae) (Habibuddin et al. Each cage was infested using 48 adult weevils (two weevils per plant) and weevils were allowed free access to the plants for 5 d. After 5 d of exposure to adults, pots were then removed from cages and any weevils found on plants were killed.
2009, Liu et al.
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