The tropical root weevil Diaprepes abbreviatus was described by Carl Linnaeus as Curculio abbreviatus in the tenth edition of his Systema Naturae in 1758 from specimens collected in the West Indies. D. abbreviatus is found on Puerto Rico and Hispaniola and in the Lesser Antilles from Grenada ...
Technology Transfer Automated Retrieval System (TEKTRAN)
... have been produced from the cotton Boll weevil Anthonomus grandis (Barcenas et al., 1989, Stiles et al., 1992) ... have been reported to infect the Boll weevil, Anthonomus grandis, Boheman (McLaughlin et ...
NBII National Biological Information Infrastructure
... propylene-glycol. These failures were likely due to degraded DNA or the presence of PCR-inhibitors. Despite the ... ...
... more reliable and repeatable technique. In particular, mitochondrial DNA ... maternal inheritance and the absence of recombination (Avise 1994, 2000). ... ...
... to Florida in the 1960s. A six-unit wind tunnel apparatus was constructed to allow multiple runs to ... 28, 2009Keywords: Diaprepes root weevil, arrestment, aggregation pheromone, wind tunnel Insects use...
The root weevil, Diaprepes abbreviatus, is a major pest of citrus, sugar cane, and ornamental plants. It was accidentally introduced from the Caribbean into Florida in the 1960¿s and its range within the United States has now expanded to include Texas and California. No safe and effective control me...
The root weevil Diaprepes abbreviatus was introduced into Florida in 1964. Since then, it has colonized Florida to the south but has not expanded its range to the north. We determined the effect of cold on eggs, larvae, pupae, and adults and oviposition behavior. A lower threshold for oviposition w...
The tropical root weevil Diaprepes abbreviatus (L. 1758) (Coleoptera: Curculionidae) is a polyphagous insect from the Caribbean Islands and an invasive insect in the southern part of United States where it is pest of citrus crops and ornamental trees. Adults feed upon foliage where aggregation, mat...
A semiochemical-based attractant for the tropical root weevil, Diaprepes abbreviatus (L.), has been sought since the introduction of this polyphagous pest to Florida in the 1960s. A 6-unit wind tunnel apparatus was constructed to allow multiple runs to be conducted simultaneously to test the respons...
Diaprepes root weevil, (DRW) Diaprepes abbreviatus is a key pest of citrus and ornamental plants in Florida and Texas. DRW larvae burrow through the soil feeding on roots which when girdled causes secondary infection of the structural roots or root crown by Phytopthora spp. ...
The tropical root weevil, Diaprepes abbreviatus, is a major pest of citrus and other crops through the Caribbean and the southern parts of Florida, Texas and California. The larvae hatch from eggs laid by the female weevils on leaves. The newly hatched larvae fall to the ground where they burrow int...
... Hall 1. (2010) Artificial Diet Optimized to Produce Normative Adults of Diaprepes abbreviatus (Coleoptera: Curculionidae). Environmental Entomology 39:2, 670-677Online publication date: 1-Apr-2010.Abstrac...
... reduction in oviposition attempts or hatchability because of oil residue (Schroeder & Green 1983). References CitedKnapp, J. L. 2001. ... D. S. Green. 1983. Diaprepes abbreviatus (Coleoptera: Curculionida...
Insect diets are complex mixtures of vitamins, salts, preservatives, and nutrients (carbohydrates, lipids and proteins). To determine the effect of varying the doses of multiple components, the traditional approach requires large factorial experiments resulting in very large numbers of treatment com...
... left in their containers with a piece of wax paper added as an oviposition substrate (Wolcott 1933). On ... to lay eggs for 3 more nights. The wax paper strips and eggs were placed in plastic vials ... ...
The tropical root weevil, Diaprepes abbreviatus (L.), has been a pest of citrus and ornamental plants since its introduction into Lake County, FL in 1964. Since then, it has colonized the Florida peninsula to the south of its point of introduction, but has not expanded its range to the north. A lowe...
The root weevil Diaprepes abbreviatus has been reared since 1992 on an artificial diet first reported in 1982. Recently, we have shown that several ingredients included in the original diet have little or no effect on insect performance. Here we examined the effects of varying two principal drivers ...
Invertebrate iridescent virus 6 (IIV6) was evaluated for mode of transmission and ability to cause infection in the root weevil, Diaprepes abbreviatus (L.). This is the first evidence of IIV6 infection in D. abbreviatus, which caused both patent and sub-lethal covert infections in both larvae and adults. Adults and ...
PubMed Central
A semiochemical-based attractant for the Diaprepes root weevil has been sought since introduction of this polyphagous pest to Florida in the 1960s. Recent progress includes the identification of a set of putative kairomones consisting of common plant volatiles, a hypothetical aggregation pheromone t...
We here report the development and viral infection of a Diaprepes root weevil cell culture. Embryonic tissues of the root weevil were used to establish cell cultures for use in screening viral pathogens as potential biological control agents. Tissues were seeded into a prepared solution of insect medium and kept at ...
PubMed
The use of entomopathogenic nematodes (EPN) for management of the root weevil, Diaprepes abbreviatus, in Florida citrus groves is considered a biological control success story and typically involves augmentation in which EPN are applied inundatively as biopesticides to quickly kill the pest. However, recent evidence indicates that ...
Accurate, fast identification of pests is critical to apply quarantine and control methods. Most procedures rely on morphology of adults for identification. Here we developed an accurate and sensitive barcoding technique based on the PCR-amplification and sequencing of the mitochondrial COI gene t...
The Diaprepes root weevil, Diaprepes abbreviatus, is a pest of vegetables, ornamental plants, sugarcane, and citrus in Florida and the Caribbean. The entomopathogenic nematode, Steinernema riobrave, can reduce larval populations of D. abbreviatus substantially. Efficacy of entomopathogenic nematodes, however, may ...
Diaprepes abbreviatus (L.) (Coleoptera: Curculionidae) is a root weevil introduced into the United States from the Caribbean in 1964. It is associated with >300 plants, including citrus, sugarcane, and potatoes. D. abbreviatus is widespread in Florida, and it has recently been detected in limited areas of ...
The root weevil Diaprepes abbreviatus L. has been continuously reared since 1992 on an artificial diet (F1675) first reported in 1982. The weight of weevils reared on F1675 was more than twice as great as field-collected individuals. Recently, several ingredients included in the original F1675 diet were shown to ...
... weevil Diaprepes abbreviatus (L.) and three mosquito species Anopheles quadrimaculatus Say, Culex quinquefasciatus Say, and Aedes aegypti ( ... virulent than the SjHe isolate in D. abbreviatus. Anopheles q...
Herbivore-induced volatile emissions benefit plant hosts by recruiting natural enemies of herbivorous insects. Such tritrophic interactions have been examined thoroughly in the above-ground terrestrial environment. Recently, similar signals have also been described in the subterranean environment, which may be of equal importance for indirect plant defense. The larvae of the ...
Diaprepes abbreviatus L. is a highly polyphagous root weevil that causes damage to several fruit crops, ornamental plants, and other naturally occurring plants in Florida. Haeckeliania sperata Pinto is a gregarious endoparasitoid that attacks D. abbreviatus eggs. We hypothesized that the reproductive success of H. ...
... predispose roots to invasion by opportunistic pathogens, especially Phytophthora spp. (Rogers et al. 1996). Currently D. abbreviatus ... may explain why citrus trees infested with both Phytophthora spp. a...
Numerous species of root weevil, Otiorhynchus spp. (Coleoptera: Curculionidae), infest hop. The black vine weevil, O. sulcatus (F.), is the dominant species infesting hop followed by the strawberry root weevil, O. ovatus (L.), rough strawberry root ...
A 6-tunnel wind tunnel was constructed to study behavior of adult Diaprepes abbreviatus. Weevils were introduced downwind and allowed to move upwind in response to odor sources (targets). Weevils did not respond in empty tunnels (no odor). Some movement upwind but no arrestment (cessation of moveme...
The tropical weevil Diaprepes abbreviatus was introduced into Florida from the Caribbean in the 1960s. It has since become a major pest of citrus and ornamental plants in that state, and has expanded its range into California and Texas. This weevil threatens a number of important crops because of it...
... brief history about the invasive species Diaprepes Root Weevil, its life cycle and the plants it uses ... details on how to monitor for Diaprepes root weevils, particularly in California, and steps taken ...
Taylor's power law and Iwao's patchiness regression were used to analyze spatial distribution of eggs of the Diaprepes root weevil, Diaprepes abbreviatus (L.), on silver buttonwood trees, Conocarpus erectus, during 1997 and 1998. Taylor's power law and Iwao's patchiness regression provided similar ...
Energy Citations Database
Factorial treatments of entomopathogenic nematodes (EPN) and composted, manure mulches were evaluated for two years in a central Florida citrus orchard to study the post-application biology of EPN used to manage the root weevil, Diaprepes abbreviatus. Mulch treatments were applied once each year to study the effects of altering the ...
An alternative approach to applying entomopathogenic nematodes entails the distribution of nematodes in their infected insect hosts. Protection of the infected host from rupturing, and improving ease of handling, may be necessary to facilitate application. In this study our objective was to test the potential of a new method of formulating the infected hosts, i.e., enclosing the infected host in ...
The root weevils, Otiorhynchus sulcatus and Otiorhynchus ovatus, the black vine and strawberry root weevil, respectively, are perennial, ubiquitous pests of berry and nursery crops throughout the world. We recently developed a mass rearing system for these pests and now are able to conduct controlle...
Title: Electrophysiological and behavioral responses of citrus root weevil. Author: Otalora-Luna, Fernando; Hammock, Jennifer A.; Alessandro, Rocco T.; ...
Treesearch
... larger roots, and pupate in the soil after 9-11 instars (Woodruff 1985, ... and Phytophthora can cause severe tree decline and destroy groves within a ... ...
... as those caused by citrus blight, tristeza, or Phytophthora spp. (Quintela et al. 1998). Feeding injuries caused ... been associated with the infectious diseases caused by Phytophthora spp. (Rogers et al....
... larger roots. Root feeding can facilitate infection by Phytophthora nicotiana or P. palmivora and the resulting pest- ... Bright, D. B., and Mccoy, C. W. 2003. Phytophthora-Diaprepes weevil complex: Phyto...
... Coleoptera: Brentidae) weevil, is a serious pest of sweet potato, Ipomoea batatas (L.) Lam. (Convolvulaceae), and is widely ... generations at OPPPC To obtain virgin PE weevils, sweet potato roots were di...
The weevil subfamily Baridinae is comprised of several economically important species that cause damage to the roots and fruits of plants. In the early 1990's, a baradine weevil was observed feeding on and occasionally killing amaryllis (Hippeastrum Herb) plants in Florida. A survey was conducted to...
The weevil subfamily Baridinae is comprised of several economically important species that cause damage to the roots and fruits of plants. In the early 1990¿s, a baridine weevil was observed feeding on and occasionally killing amaryllis (Hippeastrum Herb) plants in Florida. A survey was conducted ...
The pine root collar weevil, Hylobius radicis Buchanan, became a serious forest pest in North America after the planting of hard pines was increased in the 1930's. Felt (1926) gave the first precise account of its damage when he recognized that the injury...
National Technical Information Service (NTIS)
... 087[0391:IDODRW]2.0.CO;2 IRRADIATION DISINFESTATION OF DIAPREPES ROOT WEEVIL (COLEOPTERA: CURCULIONIDAE) AND PAPAYA ... TX 7859...
The hypothesis that herbivory by Diaprepes root weevil larvae reduces leaf gas exchange and biomass was tested on buttonwood (Conocarpus erectus L.), Surinam cherry (Eugenia uniflora L.), mahogany (Swietenia mahagoni Jacq.), and pond apple (Annona glabra L). For Surinam cherry, net CO2 assimilation, transpiration, and stomatal conductance, but not internal ...
... CO2 assimilation when larvae were actively feeding on maize root systems but did not affect net CO2 assimilation ... 1179. CSARiedell, W. E. and R. N. Reese. Maize morphology and shoot CO2 assimilation af...
... as regeneration of its primary host, lodgepole pine, Pinus contorta Dougl. variety latifolia Engl, increases (Schroff et al. ... root formation and early root/ shoot ratio of Pinus contorta and Pinus sylv...
Stage-structured models that integrate demography and dispersal can be used to identify points in the life cycle with large effects on rates of population spatial spread, information that is vital in the development of containment strategies for invasive species. Current challenges in the application of these tools include: (1) accounting for large uncertainty in model parameters, which may ...
... large plots, sample sizes � 100 Tedders traps were estimated to provide sampling ... (Fig. 4). Sampling requirements for the two weevils converged at lower densities ... ...
larvae of sweet potato weevils in sweet potato roots. Doses at ... Bromide to Disinfest Sweet Potato of Weevils. Ann. Int. Res. Conf. of M/B Alternatives. ...
NASA Website
... J. Kays. 1989a. Feeding and oviposition preferences of sweet potato weevil, Cylas formicarius elegantus (Summers), on storage roots of sweet potato cultivars with differing surface chemistries. J. Chem. Ec...
Herbivore induced volatile emissions benefit plant hosts by recruiting natural enemies of herbivorous insects. Such tritrophic interactions have been thoroughly examined in the above-ground terrestrial environment. Recently, similar signals have also been described in the subterranean environment, ...
From March 2003 to December 2005 traps were used to monitor the abundance of Diaprepes abbreviatus and Phyllophaga spp. adults emerging from the soil at the base of several exotic tropical fruit trees (Pouteria sapota, Manilkara zapota, Litchi chinensis, and Nephelium lappaceum) at three different s...
... ingestion by the adult Diaprepes root weevil plus absorption of residues from leaves into eggs was evaluated in experiment 1. Three ... ...
Technical information about purple loosestrife. Identified are the biological control agents, root feeding weevil, signs of impact in Illinois, purple loosestrife facts and host ... ...
