Landscape Management › f5dba1c6-c4dc-4e07-a1a1-5a11a24e...Irrigation Early morning (4-10 a.m.) to...
Transcript of Landscape Management › f5dba1c6-c4dc-4e07-a1a1-5a11a24e...Irrigation Early morning (4-10 a.m.) to...
Landscape ManagementUniversity of Nebraska—Lincoln
Extension
Know Your PlantsSoil and water requirementsFertilizer and pruning timingEnvironmental preferencesCommon pest problemsCommon environmental problemsPast problems
Plant Spreadsheet
What is Your Tolerance Level for the Problem?Serious threat
Quickly spreading insect or disease problem (ie. Pine Wilt)Root diseases or root-feeding insects Heavy populations of insects or diseases anywhere on the plantWeeds shading or crowding new plantings
UNL Plant Pathology
Picture: Pine Wilt in September 2003 on campus
What is Your Tolerance Level for the Problem?
Non-serious threat
Usually aesthetic problemsPrimarily leaf diseases or leaf feeding insects
UNL Horticulture
Management of many pests can be accomplished through proper management practices
and plant selectionLandscape PrepPlantingMulchingPruningFertilizingIrrigationPlant Selection
Landscape PreparationAdd organic matter to landscape beds
Improves health of the plantsReduces chance of crown and root rots in clay soilsReduces drought stress in sandy soils
Photo: University of Nebraska
Planting TreesPlace on firm surfaceShould be at or slightly above grade Flare should not be buried
Photo: University of Nebraska
MulchingReduces mower and trimmer damageImproves weed controlCools soilModerates soil temperature Reduces competition for water
Photo: University of Nebraska
Benefit of Mulch
Morton Arboretum
Research at Morton Arboretum: More tree roots are developed
under a mulch bed than under turfgrass.
Pruning TreesMost trees and shrubs should be pruned in late winterSpring flowering trees and shrubs should be pruned after flowering
To avoid fireblight, prune crabapples, hawthorns, pears, mountain ash, and other susceptible species during dormancy
Photo: University of Nebraska
Pruning TreesMake correct pruning cutsClean tools between cuts on diseased plantsAvoid heavy thinning of tree canopies
Photo: University of Nebraska
Pruning Herbaceous Plants
Cut back foliage to eliminate insect or disease problems -rejuvenate fresh foliageRemove collapsed foliage - due to wind, ice or snow
Photo: University of Nebraska
FertilizingAdd as needed depending on plant signsAvoid mid-fall (N) applications, this encourages continued growth and prevents proper hardening off
IrrigationEarly morning (4-10 a.m.) to reduce leaf wetness and disease incidenceAvoid saturated soil conditions to reduce root diseases, especially in groundcoversAvoid watering turf and landscape beds with the same irrigation head
Picture: Overwatered turf stressing a littleleaf linden (thin canopy)
Photo: University of Nebraska
Plant Selectionhttp://ianrpubs.unl.edu/horticulture/
http://arboretum.unl.edu/plantinfo.html
Contact your local county extension office more more information.
When Pesticides Are Needed
Use curative, spot applicationsApply at the correct time using the appropriate productPotentially use preventative products in troublesome areas
CreditsContent Specialist
Anne Streich, UNL ExtensionContent Editor
Erin Bauer, UNL ExtensionPhotos
Anne Streich, UNL ExtensionLoren Giesler, UNL ExtensionDon Steinegger, UNL ExtensionMorton Arboretum