A study on 12 entomopathogenic fungi for controlling broad mite (Polyphagotarsonemus latus (Banks)) in mulberry found that Metarhizium anisopliae CKM-048 was the most virulent strain in controlling both larvae and adult broad mites at the concentration of 2 x 10(8) conidia/ml. There was no ovicidal effect when tested with broad mite eggs. Median lethal concentrations (LC(50)) of M. anisopliae in killing larvae and adults were 8.7 x 10(6) and 1.3 x 10(7 )conidia/ml, respectively. Median lethal times (LT(50)) of larvae and adults were 2.4 and 3.8 days, respectively, at the concentration of 2 x 10(8) conidia/ml. The fungus was found to produce protease and chitinase. Scanning electron microscope (SEM) studies were done to monitor the infection steps of the fungus on broad mites. A greenhouse test on mulberry trees revealed that M. anisopliae could reduce the broad mite population within 4 days after treatment. However, after 7 days, its efficacy was decreased significantly.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s10493-008-9153-y | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Transcriptome Analysis Unveils Molecular Mechanisms of Acaricide Resistance in Two-Spotted Spider Mite Populations on Hops.
Int J Mol Sci
December 2024
Department of Entomology, Pennsylvania State University, University Park, PA 16802, USA.
Broad-spectrum crop protection technologies, such as abamectin and bifenthrin, are globally relied upon to curb the existential threats from economic crop pests such as the generalist herbivore Koch (TSSM). However, the rising cost of discovering and registering new acaricides, particularly for specialty crops, along with the increasing risk of pesticide resistance development, underscores the urgent need to preserve the efficacy of currently registered acaricides. This study examined the overall genetic mechanism underlying adaptation to abamectin and bifenthrin in populations from commercial hop fields in the Pacific Northwestern region of the USA.
View Article and Find Full Text PDFRegional patterns and climatic predictors of viruses in honey bee (Apis mellifera) colonies over time.
Sci Rep
January 2025
Department of Biochemistry and Molecular Biology, Michael Smith Laboratories, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada.
Honey bee viruses are serious pathogens that can cause poor colony health and productivity. We analyzed a multi-year longitudinal dataset of abundances of nine honey bee viruses (deformed wing virus A, deformed wing virus B, black queen cell virus, sacbrood virus, Lake Sinai virus, Kashmir bee virus, acute bee paralysis virus, chronic bee paralysis virus, and Israeli acute paralysis virus) in colonies located across Canada to describe broad trends in virus intensity and occurrence among regions and years. We also tested climatic variables (temperature, wind speed, and precipitation) as predictors in an effort to understand possible drivers underlying seasonal patterns in viral prevalence.
View Article and Find Full Text PDFThe carnivorous plant harnesses active particle dynamics to prey on microfauna.
Proc Natl Acad Sci U S A
January 2025
School of Physics, Engineering & Technology, University of York, Heslington, York YO10 5DD, United Kingdom.
Carnivory in plants is an unusual trait that has arisen multiple times, independently, throughout evolutionary history. Plants in the genus are carnivorous and feed on microorganisms that live in soil using modified subterranean leaf structures (rhizophylls). A surprisingly broad array of microfauna has been observed in the plants' digestive chambers, including ciliates, amoebae, and soil mites.
View Article and Find Full Text PDFDeciphering metabolic pathways: A treasure map to therapeutic targets.
Biotechnol Notes
November 2024
Department of Animal Sciences, School of Life Sciences, Central University of Himachal Pradesh, District Kangra, Himachal Pradesh, India, 176206.
Article Synopsis
- Indian tick typhus is an infectious disease caused by gram-negative bacteria transmitted through ticks, lice, fleas, or mites, with an increase in reported cases in India over the past decade.
- A study identified 18 unique metabolic pathways in the bacteria, revealing 163 proteins tied to survival, virulence, and resistance, which are crucial for understanding the pathogen's behavior.
- Out of these proteins, 88 were identified as potential therapeutic targets, with 43 showing compatibility for drug development, hinting at new strategies for treating Indian tick typhus.
Effect of the sarcoptic mange upon metabolome profiling in wild boars.
Res Vet Sci
February 2025
Department of Veterinary Medicine and Animal Production, University of Naples Federico II, 80137 Naples, Italy. Electronic address:
Sarcoptic mange is a highly contagious disease and represents one of the main health concerns for humans and non-human mammals worldwide. It is caused by the mite Sarcoptes scabiei and can course with different morphological and physiological presentations. Accordingly, aside from skin inflammation, hosts may experience changes in body condition, immune system, biochemistry, reproduction, and thermoregulation, although the understanding of the downstream metabolic burden is still missing.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!