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Foto 1. Flores macho (izquierda) y hembra (derecha) de la planta de calabaza. Crédito: Lori Shapiro.
Polinización Integrada de Cultivos de Calabazas - Articles Articles

Polinización Integrada de Cultivos de Calabazas

乐动体育注册 Shelby Fleischer, Ph.D., Dr. James Cane, Dr. Katharina Ullmann

El género Cucurbita contiene distintas especies de calabaza (también conocidas como: calabaceras, calabacines o zapallos). En los Estados Unidos, las plantas de calabaza son comunes en granjas y jardines en todo el país. More
A squash bee deep inside a pumpkin flower. Notice the pollen grains on its hairy legs. Photo: Tom Butzler, Penn State
Native Pollinators Provide Free Services for Growers - News News
With winter officially over and the warmer temperatures moving in, beekeepers will be able to open hives and fully assess their health. More
A honeybee visiting strawberry flower. Photo: Tom Butzler, Penn State
Strawberry Pollination: a Complex and Tricky Business - Articles Articles
Next time you purchase strawberries from a grocery store or local grower/roadside stand, closely inspect one before you chomp down on it. What makes that berry so attractive to eat? More
Photo 1. Blueberry blossom showing the characteristic flowers of this plant. Note that the flowers are closed, bell-shaped and pendant. Photo credit: Nicole Castle, contributed to Plant Village.
Who Pollinates Pennsylvania Blueberry Plants? - Articles Articles

Who Pollinates Pennsylvania Blueberry Plants?

Margarita López-Uribe, Ph.D., Shelby Fleischer, Ph.D., Kristal Watrous, Nolan Amon

Blueberries (genus Vaccinium) are a high-value crop in Pennsylvania and the United States, with an estimated value of at least $825 million to the US economy in 2014. More
Andrena on apple blossom. Photo: David Biddinger
Orchard Pollination: Wild Bees - Articles Articles

Orchard Pollination: Wild Bees

乐动体育注册 Dave Biddinger, Ph.D.

Managed pollinators like honey bees and mason bees are important pollinators for orchards, but research suggests that wild bees also contribute significantly to fruit tree pollination. More
Growers dependent on honey bees must constantly maintain a delicate balance between protecting their crops from pests and pathogens and protecting pollinators.
Orchard Pollination: Honey Bees - Articles Articles

Orchard Pollination: Honey Bees

Dave Biddinger, Ph.D.

European honey bees are the primary managed pollinators in orchards because their abundance can be managed from year to year. More
The nearer the pollinizer to the producing tree, the better distribution by the bees of pollen to all blossoms. Crabapples are often used as pollinizers.
Orchard Pollination: Pollinizers, Pollinators and Weather - Articles Articles
Pollination involves the integration of several biological and physical factors, including cultivar compatibility, synchronous blooming, insects, and proper weather conditions. More
Las flores de manzanas requieren la polinización cruzada por abejas, y las variedades de polinización se tienen que incluir en un plan de plantación del huerto.
Señalamientos Acerca de la Polinización para Incrementar la Cosecha de Manzanas - Articles Articles
Este archivo describe los factores que afectan el proceso de polinización, la formación de las yemas florales y la floración. More
Fruit diameter and seed set in crabapples associated with various pollinators
Orchard Pollination - The Role of Pollen Bees - Articles Articles

Orchard Pollination - The Role of Pollen Bees

乐动体育注册 Dave Biddinger, Ph.D.

Wild and managed non-honey bee species have long supplemented honeybee pollination in fruit orchards. More
Pollination Characteristics of Fruit in Home Gardens
Pollination Characteristics of Fruit in Home Gardens - Articles Articles
"Self-fertile" plants will set fruit with their own pollen. However, all plants produce more fruit when two or more varieties are planted close to each other. More
Pollination Requirements for Various Home Garden Fruits
Pollination Requirements for Various Home Garden Fruits - Articles Articles
Before you order plants for your orchard or vineyard, you should determine whether you will have to plant more than one variety to provide for pollination. More
Apples require Cross Pollination to produce a crop, but there are many other fruit and nut varieties that are self-fruitful. Photo: D. Biddinger.
Pollination Requirements for Various Fruits and Nuts - Articles Articles
Pollination is the transfer of pollen from the male part (anther) of a flower to the female part (pistil) of the same or another flower of the same sort. More
Example of an overly vigorous apple tree.
Home Orchards: Why is There No Fruit on My Tree? - Articles Articles
Common tree fruit questions from home gardeners are "why do my trees fail to bear fruit" or "why do they only have fruit every other year?" More
Wild Bees for Pennsylvania Cucurbits
Wild Bees for Pennsylvania Cucurbits - Articles Articles

Wild Bees for Pennsylvania Cucurbits

Shelby Fleischer, Ph.D.

In addition to honey bees, which are managed, various un-managed species that exist as wild populations play key roles in providing pollination of cucurbit crops. More
Squash bee by Susan Ellis, Bugwood.org
Pumpkin Pollinators - Articles Articles
Pumpkin fruit set can be affected by a number of production and environmental factors. More
Blueberry Pollination in Home Fruit Plantings
Blueberry Pollination in Home Fruit Plantings - Articles Articles
Most plantings will produce satisfactory crops when only one variety is included, but pollen from other varieties generally will result in increased yields, larger fruits, and earlier ripening. More