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Articles 1 - 6 of 6
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Effectiveness Of An Artisanal Mcphail Trap For Mass Trapping Tephritid Fruit Flies In Haiti, Fractyl Mertilus
Effectiveness Of An Artisanal Mcphail Trap For Mass Trapping Tephritid Fruit Flies In Haiti, Fractyl Mertilus
LSU Master's Theses
Three field experiments were conducted in a mango orchard in Croix-des-bouquets (Haïti) to develop an effective artisanal McPhail trap, less expensive than the commercial traps, for mass trapping Anastrepha obliqua (Macquart) and Anastrepha suspensa (Loew). A field trial conducted to evaluate the effectiveness of two newly made artisanal trap models (AT1 and AT2) with the commercial McPhail trap (MP) demonstrated that the artisanal traps yielded similar results in the average number of fruit flies caught (8.9±2.6, 13±2.9, and 16±4.1 respectively). Moreover, the cost-efficacy ratio was a lot higher in the artisanal trap models (AT1: 0.42 $ per flies caught, AT2: …
Effects Of Spinosad On Formosan Subterranean Termite, Coptotermes Formosanus Shiraki (Isoptera: Rhinotermitidae), Dependra Bhatta
Effects Of Spinosad On Formosan Subterranean Termite, Coptotermes Formosanus Shiraki (Isoptera: Rhinotermitidae), Dependra Bhatta
LSU Master's Theses
Formosan subterranean termites, Coptotermes formosanus, are economically important structural pests of warm and humid regions. Different control measures have been developed to avoid the damage caused by them. Among the available measures, chemical treatments have predominated for the last five decades. In our study we tested the effect of spinosad, a biopesticide, on C. formosanus. Spinosad is composed of bacterial metabolites that have been widely used to control various agriculture pests. It has been tested on Kalotermitidae and Termitidae; however, not on Rhinotermitidae, the most destructive of termite families. Both no choice and choice tests were conducted using three concentrations, …
Impact And Management Of The Mexican Rice Borer (Lepidoptera: Crambidae) In Bioenergy Crop Agroecosystems, Matthew Travis Vanweelden
Impact And Management Of The Mexican Rice Borer (Lepidoptera: Crambidae) In Bioenergy Crop Agroecosystems, Matthew Travis Vanweelden
LSU Doctoral Dissertations
The Mexican rice borer, Eoreuma loftini (Dyar) (Lepidoptera: Crambidae) is an invasive stem borer pest of sugarcane, rice, corn, and sorghum, and poses a threat to the production of dedicated bioenergy feedstocks in the U. S. Gulf Coast region. Studies were conducted to assess insect-plant interactions between E. loftini and bioenergy and conventional cultivars of sugarcane and sorghum, including yield response, oviposition preference, and host suitability. In addition, the efficacy of select cultural and biological control tactics to manage E. loftini in these crops was assessed. Bioenergy sugarcane (energycane) and sweet sorghum exhibited reduced E. loftini injury; however, these crops …
Integrated Multiple-Tactic Management Of The Redbanded Stink Bug On Soybeans In Louisiana, Miyanda Nzala Moonga
Integrated Multiple-Tactic Management Of The Redbanded Stink Bug On Soybeans In Louisiana, Miyanda Nzala Moonga
LSU Doctoral Dissertations
Stink bugs (Hemiptera: Pentatomidae) are major pests of soybeans in Louisiana and heavy infestations often lead to economic losses. The stink bug species complex has changed in the past decade with the prevalence of the invasive redbanded stink bug, Piezodorus guildinii (Westwood), which causes greater damage than other stink bug species. Moreover, control of the redbanded stink bug has been faced with challenges because it is less sensitive to recommended insecticides. Therefore, studies were conducted to evaluate different control options for P. guildinii. Among the studies conducted was the current status of egg parasitoids of stink bugs in Louisiana. Telenomus …
Herbivore Response To Soybean Under Differing Induction Methods, John L. Dryburgh
Herbivore Response To Soybean Under Differing Induction Methods, John L. Dryburgh
LSU Master's Theses
Plants are attacked by a variety of herbivore feeding guilds and respond with specific responses to specific attacks, which may be localized or systemic. How a plant defends against one feeding guild may alter the plant’s response against a different feeding guild. A better understanding of these interactions will allow for the development of refined pest management programs. One situation in which this may occur is in interactions between chewing and piercing/sucking herbivores, such as aphids. Aphids are important crop pests primarily due to their ability to transmit viruses, the efficacy of which can be affected by plant defenses. To …
Effects Of Detrital Subsidy On Arthropod Communities In Louisiana Rice Fields And Predation On Rice Water Weevil (Lissorhoptrus Oryzophilus), Nathan Mercer
LSU Master's Theses
The rice water weevil (RWW), Lissorhoptrus oryzophilus (Kuschel), is the most important insect pest of rice in the United States. Integrated pest management strategies for RWW in Louisiana consist of cultural controls, resistant cultivars and chemical insecticides. The fourth component of IPM, biological control, is largely absent from the literature for RWW, making exploration of biological control a logical next step in developing a full set of IPM strategies. The three main types of biological control are augmentation, classical and conservation. With little known about RWW predators, conservation biological control makes the most sense as local natural enemy abundance is …