Browsing by Department "Entomology and Plant Pathology"
Now showing items 181-200 of 209
Sclerotinia sclerotiorum: Yield Loss of Brassica carinata in the Southeastern United States and Effect of Fungicides and Light Wavelength.
(2022-11-28)
Sclerotinia sclerotiorum is a major pathogen of over 400 plant species around the world and is considered to be the biggest threat to the production of Brassica carinata in the southeastern United States. Brassica carinata ...
Selecting Plant Growth-Promoting Rhizobacteria (PGPR) for Both Biological Control of Multiple Plant Diseases and Plant Growth Promotion in the Presence of Pathogens
(2015-07-29)
A study was conducted to select PGPR strains for broad-spectrum disease suppression and growth promotion in the presence of plant pathogens. First, 198 strains were tested for antibiosis capacity against nine different ...
The Sodium Channel Gene Expression on the Kdr Locus in the House Fly, Musca domestica and the Mosquito, Culex quinquefasciatus
(2010-07-14)
A point mutation of leucine to phenylalanine (L-to-F), resulting from a single nucleotide substitution in the sodium-channel of insects, is associated with pyrethroid resistance. In this study, to understand genetic basis ...
Soil Microbial Community Structure and Aflatoxin Contamination of Peanuts
(2009-08-06)
Potential management of the soilborne Aspergillus flavus and A. parasiticus fungi, a food contaminate that causes human and animal health problem, may be possible through maintaining an appropriate soil microbial diversity. ...
Southern Root-knot Nematode (Meloidogyne incognita (Kofoid and White) Chitwood) and Fungal Susceptibility of Turmeric (Curcuma longa L.) Accessions
(2017-07-22)
Turmeric (Curcuma longa L.), a spice crop native to southeast Asia, is undergoing evaluation as a niche crop for Alabama and other southeastern U.S. production areas. Thirteen accessions of Curcuma spp. (including eight ...
Species Diversity of Hickory-feeding Phylloxerans (Hemiptera: Phylloxeridae) in the U.S.
(2019-07-23)
During the spring months, hickories throughout the Eastern U.S. become adorned with abnormal growths or galls on the leaf or stem tissue. Many of these galls are caused by phylloxerans (Hemiptera: Phylloxeridae: Phylloxera ...
Sprayable formulations of dsRNA as a tool for management of Popillia japonica (Coleoptera: Scarabaeidae)
(2023-11-27)
RNA interference (RNAi) mediated by environmental dsRNA presents a promising, target-specific approach to providing plant-protection against damage from invasive and outbreak insect pests. However, this approach has not ...
The Stink Bug Complex in Alabama Field Crops with a Focus on the Brown Marmorated Stink Bug
(2018-05-02)
The brown marmorated stink bug, Halyomorpha halys (Stål), was first confirmed in the state of Alabama in 2010. Population spread was observed by researchers, prompting further studies in 2014-2017. There are now 29 counties ...
The Studies of Plant Host Resistance to the Reniform Nematode in Upland Cotton and the Effects of Bacillus firmus GB-126 on Plant-Parasitic Nematodes
(2013-04-22)
Germplasm lines LONREN-1 and LONREN-2 were released in 2007 for cotton breeders to incorporate reniform nematode resistance into breeding efforts with desirable cultivars to establish nematode resistant high yielding ...
Studies on Cercospora Leaf Spot
(2006-12-15)
Fresh Pseudocercospora cornicola specimens were compared to an isotype specimen to confirm species identity. The two specimens proved to be the same taxonomic entity. The fungus was then redescribed and illustrated from ...
Studies on Re-colonization of Microbial Populations in the Rhizosphere of Chrysanthemum after Soil Steaming
(2010-12-14)
Among soil disinfestation practices, the application of steam to the soil prior to cultivation is one of the most commonly used management strategies. Growers use steam to effectively kill pathogens by heating the soil. ...
Studies on the Biology and Host Location Behavior of Pteromalus cerealellae (Ashmead) (Hymenoptera: Pteromalidae), A Parasitoid of Callosobruchus maculatus (F.) (Coleoptera: Chrysomelidae)
(2008-05-15)
Pteromalus cerealellae is an ectoparasitoid of several pests of stored products. Information on several aspects of its biology and life history strategy is grossly lacking. My dissertation focuses on some aspects of the ...
Studies on the Use of Soil Edaphic Factors for the Development of Site Specific Management Strategies for Rotylenchulus reniformis on Cotton
(2012-08-01)
The reniform nematode, Rotylenchulus reniformis, is currently one of the most limiting factors to cotton production in the United States. With no available commercial host plant resistance, options for management of R. ...
Studies on Wheat Scab in Alabama
(2013-07-09)
Wheat scab is one of the more destructive diseases of wheat in the US. In Alabama, scab was not considered a problem in the past; however, during recent years it has been reported in north Alabama. The overall goal of this ...
The study of applied management options to enhance crop protection against Verticillium wilt in Gossypium hirsutum.
(2015-07-24)
Verticillium wilt of cotton is incited by Verticillium dahliae, which colonizes the vascular cylinder of the plant and resulting in defoliation, stunting, and yield loss. The long-term goal of this project was to look ...
Subterranean termite, Reticulitermes flavipes, colony behavior and population dynamic changes under conditions of exposure to chitin synthesis inhibitor bait
(2021-04-21)
This thesis entitled, “Subterranean termite, Reticulitermes flavipes, colony behavior and population dynamic changes under conditions of exposure to chitin synthesis inhibitor bait”, explores key components involved in ...
Suppression of Wolbachia mediated Cytoplasmic Incompatibility
(2020-07-17)
Insect biocontrol applications often hinge upon insect reproduction. Wolbachia are maternally inherited intracellular bacteria that infect insects. Wolbachia sterilizes a mosquito sperm resulting in a lethal embryonic ...
Tools and Insights for Sustainable Management of Plant Pests and Pathogens
(2022-04-25)
Minimizing crop yield losses caused by plant pathogens is one way of increasing agricultural productivity. To that end, I developed an automated classifier of digital images of soybean diseases to assist with early and ...
Toxicity and Laboratory Performance of Insecticides to Field-Collected German Cockroaches (Dictyoptera: Blattellidae)
(2016-11-09)
The toxicity and resistance levels of five technical grade insecticides (permethrin, chlorpyrifos, propoxur, imidacloprid, and fipronil) were determined for adult males of seven strains of the German cockroach, Blattella ...
Toxicity and Physiological Effects of Essential Oil Components against the German Cockroach, Blattella germanica (L.) (Ectobiidae)
(2022-03-24)
The overarching goal of this research is to extend the scholarship on and provide new evidence that rationalizes the inclusion of low toxicity, plant-based essential oils (EOs), and their components (EOCs) into integrated ...