Measuring Impacts of Neem Oil and Amitraz on Varroa destructor and Apis Mellifera in Different Agricultural Systems of South Florida

Alvarez-Ventura, Stephany C

doi:10.25148/etd.fi11120503

Cited by 2 publications

(1 citation statement)

References 25 publications

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“…Then, there have been reports on Varroa-mite-damage prevention measures [21][22][23][24][25][26][27]. The damage situation of bee colonies by pests other than the Varroa mite was investigated and countermeasures against those pests such as the small hive beetle [28][29][30][31][32][33][34] and the wax moth larva [35][36][37][38][39][40] were reported.…”

Section: Introductionmentioning

confidence: 99%

Seasonal Changes in Size and Mite-Prevalence of a Bee Colony Exposed to Dinotefuran via Pollen Paste and Damaged by <em>Varroa</em> Mites

Yamada¹

2020

Preprint

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Neonicotinoids, such as dinotefuran (DF), have caused a variety of problems, such as massive loss and winter failure of the bee colony, as a price for the benefit of reducing farm work, because it continues to maintain a high insecticide activity over a long period of time. In this study, a field experiment was conducted for about six months to investigate the effects of DF on bee colonies damaged by Varroa mites. This study examined the long-term changes in such as the size of bee colonies, the intake of sugar syrup (SS), intake of pollen paste (PP), which is a vehicle for administering DF, the intake of DF, the mite-prevalence of bees and the inside and outside temperatures of hive-boxes. The variation width of the inner temperature of the hive-box is less than that of the ambient temperature (Ta). The inner temperature of the hive-box is adjusted with about 30 ℃ of Ta as the boundary. If Ta is lower than 30 ℃, the inner temperature of the box is higher than Ta, and if Ta is higher than 30 ℃, it is lower than Ta. The temperature variation width of the DF-exposed colony is greater than that of the control colony. The average intake of SS per bee per day of the DF-exposed colony is more than that of the control colony. The average intake of PP per bee per day of the DF-exposed colony is almost equal to that of the control colony. These results suggest that bees do not avoid DF, and ingest PP without distinction between toxic and pesticide-free. In the period from the start of DF administration to the colony extinction, the intake of DF per colony is about 865 µg/colony, the intake per bee is 14 ng/bee, and the intake per bee per day is less than 0.1 ng/bee/day in this work. These intakes are much lower than the previous ones (60-65 ng/bee, 0.27-2.32 ng/bee/day). These discrepancies may be because attacks of mites and Japanese giant hornets hastened the colony collapse. Seasonal changes in mite-prevalence of honeybees is approximately the same regardless of the bee colonies. At the end of August (the start of attacks by Japanese giant hornets), the mite-prevalence will increase rapidly. Even if the number of bees damaged by mites turns to decrease, the mite-prevalence will continue to increase, with approaching 100% before bee colonies become extinct. In this study, it was found that the bee colony was collapsed by the intake of a smaller amount of DF due to the synergistic effect of DF and mite-damage. To prevent a bee colony collapse, not only to make an effort to minimalize the adverse effect on the bee colony of neonicotinoids such as DF with long-term residual effect and high insecticide properties, it is necessary to reduce the damage of mites as much as possible, while considering the synergistically adverse effects of neonicotinoids and miticides.

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Section: Introductionmentioning

confidence: 99%

Seasonal Changes in Size and Mite-Prevalence of a Bee Colony Exposed to Dinotefuran via Pollen Paste and Damaged by <em>Varroa</em> Mites

Yamada¹

2020

Preprint

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Artificial Intelligence and Drones in Smart Farming

Chandra Pathak,

Anas Ansar,

Kumar

2023

Future Farming: Advancing Agriculture With Artificial Intelligence

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Since India is the second-highest populated country in the world and the seventh-largest country in terms of area, which includes hills, plateaus, coastal areas, etc., this situation of land makes a variety of crops and harvest timelines. These timelines seeped into India’s culture and festivals. The harvest planning of farmers became a very challenging task due to the variety of land and multitude of harvest timelines as well. To execute this harvest plan, farmers must survey and map their land, but their limited reach restricts them. In view of these restrictions and limitations, drones can be very helpful for farmers; these drones can improve surveying quality and provide a proper harvest timeline as output. Artificial Intelligence-powered drones will give results in three stages: analysis of field planning, tracking the growth and counting of crops, and finally the ripeness tracking and timing of the harvest.

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Measuring Impacts of Neem Oil and Amitraz on Varroa destructor and Apis Mellifera in Different Agricultural Systems of South Florida

Cited by 2 publications

References 25 publications

Seasonal Changes in Size and Mite-Prevalence of a Bee Colony Exposed to Dinotefuran via Pollen Paste and Damaged by <em>Varroa</em> Mites

Seasonal Changes in Size and Mite-Prevalence of a Bee Colony Exposed to Dinotefuran via Pollen Paste and Damaged by <em>Varroa</em> Mites

Artificial Intelligence and Drones in Smart Farming

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