Pollinators
John LaRose Jr. John LaRose Jr.
shared this article 4 years ago
Topics: Agriculture US, Organic, Beekeeping, Young Farmers, Pollinators,
TOPIC(S): Beekeeping, Pollinators,

02/22/2021 SOURCE: www.laizquierdadiario.com

Google will translate to English - Bees can't wait: they warn about the remarkable fall of these essential insects

Las abejas no pueden esperar: alertan sobre la notable caída de estos insectos esenciales

Biólogos del Conicet identifican un descenso en la recolección y observación de estos insectos indispensables para la supervivencia de plantas y cultivos agrícolas. Agronegocio y avance inmobiliario entre las amenazas. Hablamos con Eduardo Zattara, uno de ellos.

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TOPIC(S): Herbicides, Beekeeping, Research, Pollinators,

02/17/2021 SOURCE: www.mdpi.com

Evaluating the Impact of Post-Emergence Weed Control in Honeybee Colonies Located in Different Agricultural Surroundings

The honeybee Apis mellifera is exposed to agricultural intensification, which leads to an improved reliance upon pesticide use and the reduction of floral diversity. In the present study, we assess the changes in the colony activity and the expression profile of genes involved in xenobiotic detoxification in larvae and adult honeybees from three apiaries located in agricultural environments that differ in their proportion of the crop/wild flora. We evaluated these variables before and after the administration of a mixture of three herbicides during the summer season. The expression of several cytochrome P450 monooxygenases decreased significantly in larvae after post-emergence weed control and showed significant differences between apiaries in the case of honeybee workers. Principal component analysis (PCA) revealed that colonies located in the plot near to a wetland area exhibited a different relative gene expression profile after herbicide application compared with the other plots. Moreover, we found significant positive correlations between pollen collection and the pesticide detoxification genes that discriminated between plots in the PCA. Our results suggest that nutrition may modify herbicide impact on honeybees and that larvae are more harmed than adults in agroecosystems, a factor that will alter the colonies’ population growth at the end of the blooming period.

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John LaRose Jr. John LaRose Jr.
shared this article 4 years ago
Topics: Agriculture US, Organic, Agriculture Global, Beekeeping, Sustainability, World Population, Pollinators,
TOPIC(S): Beekeeping, Pollinators,
John LaRose Jr. John LaRose Jr.
shared this article 4 years ago
Topics: Organic, Beekeeping, World Population, Pollinators,

These Special Bees Craft Nests From Flower Petals

The colorful papier-mache cocoons provide a safe haven for bringing baby bees into the world.

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John LaRose Jr. John LaRose Jr.
shared this article 4 years ago
Topics: Cotton, Beekeeping, Sustainability, Research, World Population, Ag Australia/NZ, Pollinators,

Cotton heatwave pollination riddle solved

A valuable research breakthrough from Macquarie Uni may lead to more heat tolerant cotton varieties.

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John LaRose Jr. John LaRose Jr.
shared this article 4 years ago
Topics: Organic, Beekeeping, Economics, Research, World Population, Pollinators,

Variety: the spice of life for bumblebees

The research team led by the University of Göttingen is analyzing the foraging behavior of bees using pollen DNA The yield and quality of many crops benefit from pollination, but it is not just hon…

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John LaRose Jr. John LaRose Jr.
shared this article 4 years ago
Topics: Beekeeping, Food/Nutrition, Ag Global Specialty Food, World Population, Pollinators,

New nectar: could artificial pollen make life sweeter for bees?

In winter, starved of pollen and lacking natural forage, honeybee colonies can easily falter. But nutritious substitutes may be the answer

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