fusarium solani wasisolated from diseased roots of common bean (phaseolus vulgaris) grown in fields which were severely infected with fusarium root rot of bean in markazi province of iran. specific pcr primer pairs were used for the identification and verification of f. solani (mart.) f.sp. phaseoli (burkholder) w.c. snyder and n.h. hans. spore suspensions of f. solani f.sp. phaseoli were subje...

effects of induced mutation via gamma irradiated with 250 gy dose (in nuclear agriculture research school- nuclear science and technology research institute) on trichoderma harzianum conidiaon chitinase activity by sts molecular marker have been evaluated in this study. among 20 irradiated mutants which selected via improved antagonistic capability against rhizoctonia solani, pcr amplified chit...

The genus of Striga spp., particularly hermonthica, is an obligate root-hemiparasitic weed. affects 25 African countries annually and considered a major biotic threat to food security. This obnoxious weed species has been managed using various control strategies. However, the strategies have not highly effective due complexity life cycle special interactions with its host. Biological control, s...

To access the effect of augmentative biological control agents, 31 articles were reviewed that investigated the impact of release rates of 35 augmentative biological control agents on the control of 42 arthropod pests. In 64% of the cases, the release rate of the biological control agent did not significantly affect the density or mortality of the pest insect. Results where similar when parasit...

VOLUME 12, NUMBER 1, 2000 LINCOLN LABORATORY JOURNAL 3 B   have seldom been used throughout history [1–4]. The Biological and Toxin Weapons Convention of 1972 outlawed the possession and use of biological weapons; this convention has been ratified by all but a handful of major nations [5], and no nation has an overt, declared biological-weapons capability. Despite these facts, i...

Biological warfare agents were one of the most feared classes of weapons that coalition troops believed Iraq might use against them. Biologic agents can either be sufficiently toxic that they kill their victims quickly, or they may induce a sufficient degree of acute disability that troops cannot fight effectively or defend themselves against an attack. The Centers for Disease Control and Preve...

We developed a fiber-optic, microsphere-based, high-density array composed of 18 species-specific probe microsensors to identify biological warfare agents. We simultaneously identified multiple biological warfare agents in environmental samples by looking at specific probe responses after hybridization and response patterns of the multiplexed array.

Chemical insecticides have been commonly used to control agricultural pests, termites, and biological vectors such as mosquitoes and ticks. However, the harmful impacts of toxic chemical insecticides on the environment, the development of resistance in pests and vectors towards chemical insecticides, and public concern have driven extensive research for alternatives, especially biological contr...

Widespread accounts of the harmful effects of invasive species have stimulated both practical and theoretical studies on how the spread of these destructive agents can be contained. In practice, a widely used method is the deployment of biological control agents, that is, the release of an additional species (which may also spread) that creates a hostile environment for the invader. Seeding col...

weed biocontrol by using eriophid mites could be a safe and efficient strategy. in order to find an ecological non-chemical approach for controlling of weeds, and studying the possibility of using eriophyid mites, field surveys were conducted in razavi khorasan and north khorasan provinces during spring 2010. collecting of mites was carried out at all of the vegetative and reproductive stages o...