Cover of: Report on sweetpotato weevil investigations during 1941 | K. L. Cockerham

Report on sweetpotato weevil investigations during 1941

  • 13 Pages
  • 3.41 MB
  • English
Cylas formicarius, Res
StatementK. L. Cockerham
ContributionsUnited States. Bureau of Entomology and Plant Quarantine
The Physical Object
Pagination13 pages
ID Numbers
Open LibraryOL27327538M

Cylas formicarius elegantulus (Summers)-sweetpotato weevil (sweetpotato) New Jersey Host destruction, dieldrin surface treatment. Graphognathus spp. -whitefringed beetles (roots of crops - peanuts and foliage of truck crops) New Jersey Dieldrin soil and soil surface treatments.

1% Maryland Dieldrin surface treatments. For sweetpotato, farmers in Rwanda reported that the sweetpotato weevil (Cylas spp.) was the most prevalent insect pest of sweetpotato (65% of the respondents), followed by the sweetpotato butterfly Acraea acerata Hew (54% of the respondents).

In Burundi, more farmers (62% of the respondents) reported a higher prevalence of the sweetpotato Cited by: 5. sweet potato weevil control, and inspection and certification of Irish potatoes, are included in the Grove Inspector's report.

As a matter of record, there is included a brief report on the con-trol of blue mold of tobacco, wild cotton eradication, and the find-ing of the Japanese beetle. Sweetpotato (Ipomoeae batatas (L.) Lam.) is an important food crop affected by several pests throughout the world, especially in tropical, subtropical, and temperate regions.

Details Report on sweetpotato weevil investigations during 1941 EPUB

However, during the last decade, this perception has changed, and it is widely acknowledged that sweet potato has great potential to contribute to the alleviation of malnutrition and hunger in the.

Work on the bionomics and control of Anthonomus pomorum, L., is reviewed from the literature, including observations Report on sweetpotato weevil investigations during 1941 book H. Tydeman, who found that differences in the susceptibility of varieties of apple can probably be attributed to differences in flowering date, which in turn may be influenced by the root-stock, and an account is given of investigations in Kent in The treatments were four varieties of sweet potato (Ligri, Bohye, Dadanyuie and Apomuden) and four fertilizer treatments (T kg NP 2 O 5 K 2 O/haT2: kg NP 2 O 5 K 2 O /ha   Sweetpotato (Ipomoeae batatas (L.) Lam.) is an important food crop affected by several pests throughout the world, especially in tropical, subtropical, and temperate gh Japan is relatively free from many serious sweetpotato pests, some pests, especially soil-borne pathogens, viruses, and insects such as plant-parasitic nematodes and weevils, cause severe damage in Japan.

Two sibling weevil species, Pissodes strobi Peck and P. nemorensis Germar (Coleoptera: Curculionidae), can form reduced-fitness hybrids in the laboratory, but neither their premating isolation mechanisms nor mating behaviors are well-understood. Cuticular hydrocarbons (CHCs) have been reported as crucial chemical cues in mating recognition in many insects, including weevils, and, thus.

Full text of "The insect enemies of the cotton boll weevil" See other formats.

Description Report on sweetpotato weevil investigations during 1941 FB2

The reproductive properties of the sweet potato weevil were studied at 27°C, 70% RH and 14L10D. The mature female laid, at most 3 to 4 eggs per 2 days, and a total of 64 eggs on average.

This weevil isa common pest of sweetpotato in East Africa, and causesserious problems in some localities. Control. Some of the cultural control measures usedto control Cylas should be effective in reducing incidenceof this pest, especially rotation and sanitation.

The pos-sibility of biological control is under investigation. The sweetpotato weevil, Clas formicarius (F.), a serious pest of sweet potato, spends most of its life cycle within the swollen storage roots and vines of sweet potato, Ipomoea batatas (L.) Lam.

Weevils complete development in approximately 33 d at o C (Mullen ). Females oviposit eggs singly in vines or swollen roots. The effectiveness of an integrated pest-management (IPM) package for sweet potato weevil (Cylas formicarius Fabricius) was evaluated against farmers' practice for 3 rainy seasons ofand.

1 Received for publication May 2, sMaterial for this bulletin was assembled largely by the senior author from to while he was field assistant, and later assistant field aide, in the Division of Truck Crop and Garden Insect Investigations at the Estancia, N.

Mex., laboratory. The junior. Overseas exported commodities are transported by ship. Cross infestation of commodities by insects from other commodities in a ship’s hold and insects left behind in food residues from previous cargos are sources of infestation.

The following references identify the commodities carried by ship, the insect species infesting them and the locations where residual insect infestations. In the present study, we investigated the relationship between mate search and TI behavior in the sweetpotato weevil (SPW), Cylas formicarius (Coleoptera: Brentidae).

First, we found the most active mate search period of male SPW within 24 h. Then, we measured whether the duration of TI of virgin male and female were affected during the mate.

The Mango leaf cutting weevil, Deporaus marginatus (Pascoe, ) is a serious pest of mango (Mangifera indica L), which cuts the tender leaves of mango trees after oviposition. A study was conducted about the seasonal incidence of this pest, its biology and larval diapause in Kerala, India under laboratory and field conditions during the yearsand A report on the goativeed beetle program is included.

During the biennium inquiries were answered concerning insect identification, control, and general information: 79 meetings were attended and persons were co:itacted in this manner.

In addition. 79 publications, articles, and radio scripts were prepared and released. Working Paper. Unleashing the potential of sweetpotato in Sub-Saharan Africa: Current challenges and way forward.

ISSN Social Sciences Working Paper No. - 1. J Mont. Exp. Sta. Bui.pp., pp.TWENTY-NINTH REPORT OF THE STATE ENTOMOLOGIST This area was considerably smaller than that infested during the two previous years and the intensity of infestation was not so great. There were no recorded migrations or flights of economic im- portance during the season.

This banner text can have markup. web; books; video; audio; software; images; Toggle navigation. The titles and publication details of scientific publications and reports by Fred D.

Bennett are here assembled in approximately chronological order. They began in and ended in Fred is known worldwide as a specialist in biological control, a former director of the Commonwealth Institute of Biological Control, and in to a Graduate Research Professor of the University of. Annual Report on Investigations, Department of Entomology, Annual Report on Investigations, Department of Entomology, undated.

Report of the Department of Entomology, Annual Report on Investigations, Report on Cotton Insects in Arkansas, Report on Entomology Department budget,   Sixteen sweet potato varieties were evaluated for fresh storage root yield in 20 trials during for three seasons in four locations in Uganda.

Of. Goals / Objectives 1)Develop and evaluate an experimental pheromone-insecticide matrix to improve sweetpotato weevil management in commercial sweetpotato production areas. 2)Investigate the chemical ecology of the sugarcane beetle, Euetheola humilis (Burmeister).

3)Determine the relationship between crop rotation sequences, planting date and soil insect pest damage in sweetpotato. You might catch more flies with honey, but you can dispatch more weevils with fungi.

Researchers at the University of Southern Queensland, funded by the Australian Centre for International Agricultural Research, are finding ways to harness nature’s chemical weapons to fight the sweetpotato weevil (Cylas formicarius), an innocuous-looking bug that can devastate entire crops.

QRT Report at BCKV during my officer in charge-ship III. QRT Evaluation at Bhubaneswar during my officer in charge-ship Ad-hoc research projects are going on under my investigation at BCKV: Research Support: Ongoing Research Projects: S.

Title of Project Principal Investigator Funding Agency 1 Generation of Virus. Topic 7: Sweetpotato Pest and Disease Management explains how recognising the lifecycles of the damaging insect pests and diseases such as the sweetpotato weevil (Cylas spp.).

Sweetpotato is the most important vegetable crop currently grown in Louisiana. The current gross farm income and total value for sweetpotato was 65 million dollars and million dollars, respectively.

The ~15, acres planted in Louisiana accounts for ~15% of the total acreage planted in the United States, annually. Internationally, sweetpotato currently ranks seventh in importance as a.

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KEYWORDS: West Indian sweetpotato weevil, artificial diet, sterile insect technique, density effect, mass rearing Read Abstract + The West Indian sweetpotato weevil Euscepes postfasciatus (Fairmaire) (Coleoptera: Curculionidae) is a major pest of sweetpotato Ipomoea batatas (L.) Lam (Solanales: Convolvulaceae) in some countries.Wireworms first gained conspicuous, wide-ranging prominence as crop pests during World Wars I and II (RobertsMiles and Cohen ).

The increased necessity for edible crops at that time resulted in the rapid conversion of millions of hectares of grassland (1, ha in the UK alone) into mostly cereal and potato production (Miles and.Leptographium spp.

are commonly associated with bark beetles and weevils (Coleoptera: Curculionidae), and some are important tree pathogens. In a recent survey of diseases and insect pests of conifer trees in Bhutan, the root collar weevil, Hylobitelus chenkupdorjii was found girdling young Himalayan blue pine (Pinus wallichiana) trees in Central Bhutan.