Elhosseny E. Nowar

• Professor
• Professor at faculty of Agriculture, Benha Univerisity, Egypt

American foulbrood (AFB) is a harmful honeybee disease primarily caused by Paenibacillus larvae. The study aims to isolate and identify the AFB causative agent P. larvae and their specific phages to use as a new biological method for AFB disease control. Eight apiaries were inspected for AFB infections. Symptoms of diseased brood comb, were odd bro...

The Arabian or Nubian honeybee, scientifically known as Apis mellifera jemenitica (A. m. jemenitica), is a distinct subspecies of the western honeybee. A. m. jemenitica is indigenous to several tropical locations, including Saudi Arabia, Sudan, and Somalia. A. m. jemenitica has not been recorded before in Egypt. Therefore, this work aimed to valida...

Honeybees Apis mellifera L. has an important role in pollination of agricultural crops. To enhance the performance and improve the physiological characteristics of honeybee workers, seven pollen substitutes were used and administrated at 7-day intervals for two years from February 2020 to January 2022. The Consumption pattern of diets, sealed brood...

Honeybees play a pivotal role in pollinating plants worldwide besides producing valuable products that are used commercially for several purposes. The main factor affecting the biological activities of honeybee colonies is the source of their food and components, especially the source of protein. Therefore, two experiments (in apiary and laboratory...

Evaluate the toxic effects of five acaricides on the parasitic mite (Varroa destructor) and honeybee workers (Apis mellifera L.): Denfer 15% (Spirodiclofen), Kofex 24% (Spiromesifen), Metake 20% (Amitraz), Koloum super 24% SC (chlorfenapyr), and Abalon 1.8% (Abamactine). These conventional acaricides are cheap and easy to apply, but prolonged use c...

Meat and bone meal (MBM) is considered an organic waste with abundant nutrient elements. There is an urgent demand for new technologies to recycle MBM. MBM treatment with black soldier fly larvae (BSFL) is of greater potential to obtain more available C and N than traditional methods. This study evaluated the effect of batch feeding times on MBM bi...

Currently, sustainable utilization, including recycling and valorization, is becoming increasingly popular in waste management. Black soldier fly larvae (BSFL) can convert the carbon (C) and nitrogen (N) from organic waste into biomass and improve properties of the substrate to reduce greenhouse gas and NH3 emissions. In this study, the recycling o...

Currently, sustainable utilisation, including recycling and valorisation, is becoming increasingly relevant in environmental management. The wastes bioconversion by the black soldier fly larva (BSFL) has two potential advantages: the larvae can convert the carbon and nitrogen in the biomass waste, and improve the properties of the substrate to redu...

The following indicators were recorded and monitored: brood area rate and development of hypopharyngeal glands. At the end of the trials period, it was indicated that the use of arugula plant juice, as a nectar substitute, improve and increase the effect of pollen supplement and substitutes over the study. Results showed that the most worker's seal...

The effects of different moisture contents on greenhouse gas (GHG) emissions from pig manure (PM) digested by black soldier fly larvae (BSFL) as well as the accompanying changes of nitrogen and carbon contents in gaseous emissions and residues were studied. A mixture of PM and corncob at the ratio of 2.2:1 was prepared with a moisture content of 45...

The varroa mite (Varroa destructor, Varroidae, Mesostigmata, Arachnida) is an ectoparasitic mite on honey bee brood and adults. It considered one of the most serious pests in honey bee colonies (Sammataro et al., 2000; Anderson and Truman, 2000). It causes huge losses to honey bees (Apis mellifera L., Apidae, Hymenopetra) and great economic loss to...

Two experiments were carried out during two successive years 2014 and 2015 at the period from July to October in the experimental apiary of Faculty of Agriculture, Benha University, Egypt to study the effect of honeybee (Apis mellifera L.) feeding with pollen substitute on bee venom production. As well as, the effect of venom gathering during vario...

Two field experiments were conducted during two successive seasons 2013-2014 and 2014-2015 at the experimental farm, Faculty of Agriculture, Benha University, Egypt to study the effect of phytochemical composition and anatomical characteristics of two onion cultivars (Giza 20 and Red onion) on their susceptibility to infestation with Thrips tabaci....

The present study was carried out in the honey bee laboratory of Faculty of Agriculture, Benha University, Egypt during two successive years 2014 and 2015 at the period from October to December to prove that the oriental hornet (Vespa orientalis L.) was considered as AFB disease vector to honeybee (Apis mellifera L.) colonies. Firstly, the number o...

These experiments were conducted at the apiary of Faculty of Agriculture, Moshtohor, Benha Univ., during early spring of two successive years 2013 and 2014 to estimate the effect of wintering and feeding treatments on honey bee queen rearing. Eighteen colonies (9 colonies F1 Italian bees and 9 colonies F1 Carniolan bees). Each group were divided in...

This study was carried out to assess the efficacy of controlling essential oils i.eThymol, Cinnamon and Anise oils with different concentrations compared to 65% Formic acid in controlling Varroa destructor mites infesting colonies of Apismellifera during the winter and summer of 2013 season. Randomized complete block design was applied at this stud...

During the last year, there have been large-scaleunexplained losses of honey bee (Apismellifera L.) colonies in Egypt. This phenomenon is characterized by severe shortages in the population numbers of adult honeybee workers. Apocephalus borealis fly is suspected of contribution to the decrease in the honeybee population, the infected foragers left...

This work was conducted in the Apiary of Plant Protection Research Institute at El-Qanater El-Khiriya to study the effect of additive pollen substitute feeding of honey bee colonies on brood rearing, queen’s egg laying, pollen gathering and honey production through the period of 1st March to 29th August 2012. Results revealed that feeding the honey...