Results 91 to 100 of about 58,964 (256)

Do tissue carbon and nitrogen limit population growth of weevils introduced to control waterhyacinth at a site in the Sacramento-San Joaquin Delta, California? [PDF]

open access: yes, 2004
Waterhyacinth (Eichhornia crassipes(Mart.) Solms), is a serious problem in the Sacramento Delta. Two weevil species (Neochetina bruchi Hustache and N. eichhorniae Warner) have been introduced as biological control agents. The purpose of this study was
Ksander, Gregory G., Spencer, David F.
core  

Occupational Contact Urticaria, Protein Contact Dermatitis and Concomitant Airway Diseases in the Finnish Register of Occupational Diseases in 2005–2020: Main Causes and Occupations at Risk

open access: yesContact Dermatitis, EarlyView.
This Finnish registry study shows that concomitant occupational asthma and rhinitis are common in patients with occupational contact urticaria or protein contact dermatitis, often sharing the same exposure. When evaluating occupational immediate allergy, both skin and airway symptoms should be considered.
Ville Ojanen   +4 more
wiley   +1 more source

FRACTIONATION OF GRAIN MATERIALS: METHOD JUSTIFICATION [PDF]

open access: yesТехника и технология пищевых производств, 2016
The need to organize waste-free use of recyclable milk raw is due to its adverse environmental effects when released as part of waste water and the presence in it of valuable food components, which can be used in main production.
Zlochevskiy V.L.
doaj  

Forage Plant Host and Early Feeding Choices Affect Spodoptera litura Feeding, Development and Egg‐Laying

open access: yesEntomologia Experimentalis et Applicata, EarlyView.
We assessed Spodoptera litura (Lepidoptera: Noctuidae) performance on five common pasture plant species. Larvae consumed more dock, plantain and chicory per day than red or white clover, but with lower conversion efficiencies. Feeding on red clover reduced weights and egg laying, and lengthened development times compared with plantain.
J. G. Jensen   +4 more
wiley   +1 more source

Ohio Economic Insects and Related Anthropods [PDF]

open access: yes, 1989
PDF pages ...
Albrecht, Carl W.   +16 more
core  

Lethal Temperatures of Diapausing \u3ci\u3eBathyplectes Curculionis\u3c/i\u3e (Hymenoptera: Ichneumonidae) a Parasite of the Alfalfa Weevil (Coleoptera: Curculionidae) [PDF]

open access: yes, 2017
Seasonally acclimatized diapausing larvae of Bathyplectes curculionis (Thomson) were exposed to extreme hxgh and low temperatu~es to determine lethal temperatures for this stage of the parasite.
Armbrust, Edward J   +2 more
core   +2 more sources

Responses of Fruit Flies (Diptera: Tephritidae) to Protein Bait Applied at Different Densities

open access: yesJournal of Applied Entomology, EarlyView.
ABSTRACT The effectiveness of odour‐based lures for insects is related to their active space, the air volume around an odour source in which an insect will detect and move towards it. This principle applies to protein baits laced with toxicants that are used as either sprays or stations to suppress pest fruit fly populations.
Msizi R. Ramaoka   +2 more
wiley   +1 more source

Modeling the impact of sweetpotato weevils on storage root yield

open access: yesOpen Agriculture, 2018
This study estimated the amount of loss in storage roots caused by various levels of damage caused by sweetpotato weevils (Cylas spp). Seven varieties of sweetpotato (Ipomoea batatas L.
Akansake Daniel A.   +2 more
doaj   +1 more source

The weevil-watermilfoil interaction at different spatial scales: what we know and what we need to know [PDF]

open access: yes, 2000
The North American weevil ( Euhrychiopsis lecontei (Dietz)) is being considered as a biological control agent for Eurasian watermilfoil ( Myriophyllum spicatum L.).
Creed, Robert P.
core  

Home - About - Disclaimer - Privacy