نتایج جستجو برای: diseased and dead larvae

تعداد نتایج: 16837034  

Journal: :Egyptian Journal of Biological Pest Control 2023

Abstract The Scuttle fly, Eurygaster integriceps Puton (Hemiptera: Scutelleridae) is a key pest of wheat and barley. univoltine migrates from fields following harvest to high elevations; then, the spring it moves back fields. Natural enemies may have an important role in decreasing population’s level overwintering sites. In present study, adults E. were collected sites Isfahan province, Iran, O...

Journal: :حفاظت گیاهان 0
حسین کربلائی خیاوی حاجی شیخلینسکی اسدالله بابای اهری

powdery mildew caused by erysiphe necator schw. is one of the most economically destructive diseases of grapevines all over the world including iran. in this experiment, the effects of powdery mildew on grape yield, sugar and tartaric acid contents of must quality were quantified for different grapes with 14 cultivars of grapes including shahani, kishmishi, rasmi, tokolgan, garashilig, seyrakpo...

Journal: :Applied and environmental microbiology 2009
Sandra Rauch Ainura Ashiralieva Kati Hedtke Elke Genersch

Paenibacillus larvae is the etiological agent of American foulbrood (AFB) in honeybees. Recently, different genotypes of P. larvae (ERIC I to ERIC IV) were defined, and it was shown that these genotypes differ inter alia in their virulence on the larval level. On the colony level, bees mitigate AFB through the hygienic behavior of nurse bees. Therefore, we investigated how the hygienic behavior...

ژورنال: علمی شیلات ایران 2010
اسکندری, غلامرضا, سروی, بهزاد, عبداله تبار, یاسر, متین فر, عباس, محمودزاده, همایون,

Feeding behavior of yellowfin seabream larvae during the first two weeks of larval life was studied by feeding larvae  on different ratios of live food and  microencapsulated diet (MED). Food consumption rate increased progressively with increasing larval weight. The results from visual observation of the larval guts under a light microscope indicated that yellowfin seabream larvae were able to...

Journal: :Agronomy 2022

Hazelnut is an important food resource for the larvae and adults of hazelnut weevil, Curculio nucum. While wormy nuts reflect impact such weevils at harvest time, little known about other types damage they cause. To establish a comprehensive list damages, thereby identify period vulnerability, male female were collected weekly isolated on fruiting branches 1 week. Based nut development, higher ...

Journal: :Veterinary world 2015
B W Narladkar P R Shivpuje P C Harke

AIM Entomopathogenic fungi Metarhizium anisopliae and Beauveria bassiana had wide host range against insects and hence these are being exploited as fungal bio-pesticide on a large scale. Both fungi are proved pesticides against many crop pests and farmers are well acquainted with their use on the field. Thus, research was aimed to explore the potency of these fungal spores against larval and ad...

2016
Mikkel Bentzon-Tilia Eva C Sonnenschein Lone Gram

Microorganisms are of great importance to aquaculture where they occur naturally, and can be added artificially, fulfilling different roles. They recycle nutrients, degrade organic matter and, occasionally, they infect and kill the fish, their larvae or the live feed. Also, some microorganisms may protect fish and larvae against disease. Hence, monitoring and manipulating the microbial communit...

2016
Rodrigo Rojas Claudio D. Miranda Javier Santander Jaime Romero

The VPAP30 strain was isolated as the highly predominant bacteria from an episode of massive larval mortality occurring in a commercial culture of the Chilean scallop Argopecten purpuratus. The main aims of this study were, to characterize and identify the pathogenic strain using biochemical and molecular methods to demonstrate its pathogenic activity on scallop larvae, to characterize its path...

2015
D. Peréz de la Rosa J. J. Pérez de la Rosa R. Cossio-Bayugar E. Miranda-Miranda L. Lozano M. A. Bravo-Díaz M. K. Rocha-Martínez B. Sachman-Ruiz

Paenibacillus larvae strain MEX14 is a facultative anaerobic endospore-forming bacterium that infects Apis mellifera larvae. Strain MEX14 was isolated from domestic bee larvae collected in a backyard in Mexico City. The estimated genome size was determined to be 4.18 Mb, and it harbors 4,806 protein coding genes (CDSs).

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