june 2016 native pollinators: habitat creating/managing … · pollinators (bees, butterflies,...
TRANSCRIPT
Introduction
This fact sheet provides
helpful information to aid in
establishing suitable habitat
for native pollinators in
Mississippi. Thousands of
native pollinators can be found
in Mississippi. However,
special emphasis has been
placed on pollinators that may
be declining across their
native ranges. Native
pollinators are adapted to local
climate conditions, soils and
plant life, and require limited
management or maintenance.
The information provided
primarily focuses on how
interested landowners can
create and/or manage habitat
for native pollinators that are
commonly viewed in gardens
and natural habitats within
Mississippi. These pollinators
play a crucial role in
ecosystem functions and
agricultural food production.
Human activities have destroyed
and fragmented native pollinator
habitat. Interested landowners are
the key to increasing native
pollinator habitat on privately-
owned lands by providing the
habitat needs for specific groups of
pollinators (bees, butterflies,
moths, flies, beetles, and/or
hummingbirds). To attract native
pollinators, a habitat must have
adequate sources of food (foraging
habitat), nesting sites for
reproduction, shelter, and water.
Additional considerations are
landscape aspects, invasive/exotic
species control, and limiting
pesticide use. Habitat
characteristics and management practices vary depending on the type of native pollinator
targeted. However, there are a number of habitat planning approaches that will benefit
most, if not all, groups of native pollinators. These include using pesticides carefully and
providing habitat needs, including a source of water; appropriate vegetation; nesting sites;
and a balance of sun and shelter.
Natural Resources Conservation Service
Helping People Help the Land
Creating/Managing Native Pollinator Habitat
Use Pesticides Carefully
Pollinator Habitat planted with a mixture of
diverse native wildflower species. Photo By: Jan Thomas/Private Landowner
Provide Water
Pollinators need water for hydration and also for a source of dissolved minerals. Providing a
source of pesticide-free water, such as a birdbath, fountain, dripping faucet, small pond, or
mud puddle will attract hummingbirds, bees, butterflies, and other beneficial insects. A
damp salt lick can be created for butterflies and bees using a dripping hose, drip irrigation
line, or birdbath. Mix a small amount of sea salt or wood ashes into the mud to provide
mineral requirements.
Pesticides, including insecticides and herbicides, do not discriminate between good species
and bad species of insects and plants. An insecticide applied to eliminate pest insects may
also kill valuable native pollinators. Poisoning of pollinators may result from contaminated
food (pollen and nectar), or directly from contact with pesticides on florets, leaves, soil, or
other materials. Insecticide use should be reduced and herbicide use should be kept to a
minimum to protect the full range of native pollinators. Landowners should choose non-
chemical solutions to combat insect problems when possible. If an insecticide is absolutely
necessary, use the least toxic chemical possible and apply in accordance to label directions.
When applying insecticides always treat plants at the time of day when pollinators are least
active or when flowers are not in bloom.
June 2016 NATIVE POLLINATORS: HABITAT
Plant Appropriate Vegetation
The easiest way to attract native pollinators is to plant habitats that contain a variety of native wildflowers, clump-forming grasses, trees, and shrubs that provide food (nectar, pollen, and/or larval host plants), nesting sites, and shelter. Important considerations for choosing appropriate vegetation include:
Flowering plants should be blooming throughout the spring, summer, and fall so nectar and pollen are available to pollinators for the entire growing season. It is also important to include flowering plants with different blooming times during the day. (Do not forget that night-blooming flowers will support moths.)
Perennials should be chosen over annuals. Perennials are generally richer in nectar and, because they live to bloom year after year, provide a more dependable food source than annuals.
Bees and butterflies have good color vision so choose flowers of several colors – particularly blues, purple, violet, orange, yellow and white.
Select plant varieties with sweet or strong fragrances.
Provide different shaped flowers, such as flat open-faced and tubular shaped flowers, to attract pollinators with different body sizes and mouthparts. Hummingbirds are highly attracted to red tubular shaped flowers.
Each species of flower should be grown in small clumps to better attract pollinators and improve foraging efficiency.
Incorporate a diverse mixture of trees, shrubs, and native clump-forming grasses with your flowering species to provide larval host plants for butterflies and nesting and overwintering sites for bees and other insects.
Although backyard pollinator gardens frequently use native and introduced plants, use native plants first since these are usually adapted to Mississippi’s growing conditions, local climate, soils, and the native pollinators with which they co-evolved. Native plants should comprise at least 75 percent of a habitat area. Pollinator habitat in large, natural environments should only include natives to prevent introducing invasive exotic plant species.
Invasive exotic species should not be planted because they will degrade pollinator and other wildlife habitat by interfering with the natural structure and composition of the ecosystem.
Provide a Balance of Sunlight and Shelter
Quality nesting sites are important. The majority of native bees nest in the ground, while some native bees nest in hollow twigs of dead shrubs or tunnels in dead trees left behind by wood-boring beetles. Bee nesting areas can be established on sunny, south facing slopes on well-drained, partially bare areas. Garden practices that inhibit or destroy nests, like the widespread use of plastic mulch or extensive tilling should be avoided or minimized. Several of the cavity-nesting bees will also use artificial nests, such as bundles of cut bamboo tubes or wooden blocks drilled with dead-end holes in a variety of diameters and depths. Habitat connectivity is another important concept in habitat planning, both nesting and foraging habitat should be close together. The average foraging distance for native bees ranges from approximately 50 feet to ½ mile.
More on Native Pollinators The Pollinator Partnership offers different planting guides tailored to specific ecoregions in the United States. Each guide
contains native plant and pollinator information. To get the guide specific to your ecoregion visit the Pollinator Partnership
website: www.pollinator.org
Establishing Habitats for Mississippi’s Native Pollinators, Mississippi Chapter of the Soil and Water Conservation
Society and The Jamie L. Whitten Plant Materials Center operated by the USDA Natural Resources Conservation Service:
http://www.nrcs.usda.gov/ Internet/FSE_PLANTMATERIALS/publications/mspmctn9081.pdf
Attracting Native Pollinators, The Xerces Society Guide to Protecting North America’s Bees and Butterflies
www.xerces.org/
For more information on how to create habitat for native pollinators contact your local NRCS office:
http://www.nrcs.usda.gov/wps/ portal/nrcs/main/ms/contact/local/ .
Provide Nesting Habitat
Because all insect pollinators are cold-blooded, pollinator gardens should be in a sunny location and receive direct sunlight for at
least 6 to 8 hours a day. Southeast facing slopes are ideal because they receive morning sun for a quick warm-up but do not get
too hot during summer afternoons. Pollinator gardens should also be sheltered from prevailing winds by trees and shrubs. Conifer
trees or evergreen hedges are ideal because they provide both wind protection and a place for pollinators to rest overnight.
However these woody plants should be positioned so that they do not shade flowering pollinator plants since they need full
sunlight to bloom abundantly.
Nesting Leafcutter Bee
(Osmia sp.)
using small bamboo tubes.
Photo By Nancy Adamson/
NRCS - Xerces
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