Best Management Practices for Application of Turf Pesticides

Best Management Practices for Application of Turf Pesticides & Fertilizers and Yard. Scaping Gary Fish Board of Pesticides Control 287 -2731 gary. fish@maine. gov

Why BMPs n Inappropriate application practices discovered after heavy spring rains of 2005 n Water sampling results from USGS and FOCB n The Board continues to receive complaints about applications when weather forecasts are for heavy rains

USGS National Water Quality Assessment – 2006 Report n n Insecticides occurred as frequently in urban streams as they did in agricultural streams Herbicides detected in 99% of Urban stream samples

USGS National Water Quality Assessment – 2006 Report n Phosphorous found in urban streams at similar levels as in agricultural streams n 70% of those samples exceeded the EPA level for causing excessive algal growth

Aquatic Life Benchmarks n Pesticides are present throughout most of the year in streams draining watersheds with substantial urban areas, but are less common in ground water n Concentrations of pesticides were greater than water-quality benchmarks for aquatic life and (or) fish-eating wildlife in more than half of the streams with substantial urban areas in their watersheds n http: //pubs. usgs. gov/fs/2006/3028/pdf/fs 2006 -3028. pdf

Friends of Casco Bay Sampling – Pesticide residues detected in surface water in Maine • • • Diazinon up to (2. 6 ppb)** 2, 4 -D up to (36. 4 ppb) Dicamba up to (4. 1 ppb) MCPP up to (26 ppb) MCPA up to (0. 45 ppb) • **Values in red exceed Clopyralid up to (0. 91 ppb) Aquatic Life Criteria Propiconazole up to (0. 075 ppb) Chlorothalonil up to (0. 22 ppb) Found Excess Nitrogen & Phosphorous in most samples – Pesticide residues detected in sediments • Bifenthrin up to (37 ppb) • Permethrin up to (47 ppb)

BMP web page

The BMPs n Site Assessment n n Informed Product Choice n n n Pesticides Fertilizers Operating Standards n n n Initial site visit Turf assessment prior to treatment Thorough periodic assessments Prior to application Application Customer/Neighbor Relations n n Notification Customer education www. maine. gov/agriculture/pesticides/turf_bmps/

Site Assessment n Initial site visit n n n Customer expectations Pest problems Site plan and measure Soil characteristics Slope and runoff Soil test Sensitive areas Grass species Intensity of use Sun exposure Record assessment

Site Assessment n Turf assessment prior to treatment n Soil conditions n n Compacted, eroded, frozen, shallow, saturated, exposed bedrock or ledge? Pest problems Turf health Watering n n Frequency Intensity

Site Assessment n Thorough periodic assessment n Annually n n Reassess the initial site visit criteria Customer expectations and desire for service (This is now required) Review management records Every 3 – 5 years n n Soil test Consider monitoring ground water for nitrates at golf courses or sod farms or other intensively managed areas

Informed Product Choice n Pesticides n n n n Read labels & MSDSs Choose least toxic, least persistent, lowest exposure Use the WIN-PST criteria Check bee warnings Choose selective products Do spot treatments Choose low drift and low volatility products Weed & Feed

WIN-PST n http: //go. usa. gov/Kok

Select slow release fertilizers n n n Look for Water Insoluble Nitrogen (WIN) GUARANTEED ANALYSIS Total Nitrogen (N). . . …. 8. 00% 1. 0 % Water Soluble Nitrogen 7. 5 % Water Insoluble Nitrogen Available Phosphate (P 205). . …. 1. 0 % Soluble Potash (K 20). . . . . … 1. 0 % Derived from corn gluten, steamed bone meal & sulfate of potash NON PLANT FOOD INGREDIENTS Bacillus subtilis, Bacillus licheniformis, Bacillus pumulis, Bacillus megaterium, Paenibacillus polymyxa, Paenibacillus durum each @ 275, 000 CFU per gram of finished product

Informed Product Choice n Fertilizers n Choose slow- or timedrelease N (WIN – Water insoluble nitrogen) n n Avoid ammonium nitrate or sulfate and calcium nitrate n n Apply at 1 pound/1000 square feet or less Do not apply quick release N above ½ pound/1000 sq. ft. Use P-Free fertilizer unless soil test indicates need or when establishing seed

Operating Standards n Prior to application n Check site for people & pets n Sensitive individuals nearby n Toys, sandboxes, pet dishes present? n Open windows? n 24 -hour weather forecast n Record current conditions n Calibrate equipment frequently

Operating Standards n Application n n n Base applications on soil characteristics Never apply when there is standing water Never apply to saturated soils Never apply to frozen ground Never apply when temperature exceeds 85°F Follow label temperature requirements

Operating Standards n Application – continued n n n n Never apply until soil warms to 50 - 55°F at 3” soil depth Never apply between December 1 and April 1 (unless fungicide for snow mold) Consider forecasted rains Avoid application when wind is below 3 mph or above 10 mph Do not apply pesticides if rain or irrigation is imminent, unless specified by label Do not apply if moderate or heavy rain is imminent regardless of label statements Never apply to impervious surfaces

Operating Standards n Application – continued n n n n Never apply near areas prone to runoff, i. e. , culverts, drainageways or wells Never apply to bare ground unless establishing seed Cover seed to prevent erosion Clean up spills immediately Never leave materials on impervious surfaces Lightly water-in fertilizers When the label directs, assure that pesticides are watered in as directed

Operating Standards n Application – continued n n Fill spreader on hard surface Use a drop spreader near sensitive areas Leave a 25 -foot buffer of untreated vegetation near water bodies Manage pests with spot applications

Customer/Neighbor Relations n Notification n n Remind customer annually about right to request labels and SDSs When requested, always provide labels and/or SDSs When requested always notify customers and/or neighbors at least 24 hours prior to applications After application inform customers/neighbors about treatments n n Need for watering Re-entry period

Customer/Neighbor Relations n Customer Education n Customers must know when their expectations are too high and should know the limitations like: n n n n Soil depth & texture Soil p. H and nutrient imbalances Grass species limitations Proper mowing & watering Soil compaction & thatch depth Need for buffers around wells, water, etc. Low risk control options Slow-release & P-Free fertilizer options

25 -foot buffer zone required next to waters and wetlands n Applies to all terrestrial “Broadcast” applications n n n Except stinging insect and arthropod vector control, and Man-made Ag wetlands, e. g. , Cranberry bog areas Variances may be granted if the Board approves and protections are reasonably equivalent

Regional Lawn Nutrient Recommendations–U-Conn/Cornell n Nitrogen Standards n n n If the existing lawn is acceptable, no need for fertilizer Do not apply before spring green-up and no later than September 15 th (NNE) or October 15 th (SNE) Apply no more than 1/2 to 1/3 of a pound of nitrogen in any 1 application Slow release formulations are preferable When a soil test indicates adequate P or K, use N only On lawns that are 10 years or older apply a maximum of 2 lbs N/1000 per season n Newer lawns may require 3 lbs N/1000 per season

Regional Lawn Nutrient Recommendations - continued n n n n When seeding a new lawn amend the soil to get organic matter up to 3% to 5% Mow high (3 inches) and return clippings Choose tall or fine fescues because they require less nutrients and water – Avoid KBG Maintain soil p. H levels between 5. 5 and 6. 5 Consider introduction of white clover or other low growing legumes to provide natural nitrogen Start testing soil for nitrates and base application rates on need (this is experimental right now) Avoid using combination fertilizer and pesticide products

Regional Lawn Nutrient Recommendations - continued n Phosphorus Standards n n n If the existing lawn is acceptable, no need for fertilizer Soil test for P – do not guess Frank Rossi at Cornell says P is only needed on the poorest of soils Avoid P fertilizers on bare ground or low density lawns, unless seeding Use P-free next to water unless soil test shows very low phosphorus

Regional Lawn Nutrient Recommendations - continued n n n Avoid application of P prior to heavy or moderate rains Maintain p. H between 5. 5 and 6. 5 Never apply to saturated or frozen ground Soil test annually for P if using organic fertilizer or composts Avoid combination fertilizer and pesticide products

Yard. Scaping… for a healthy Maine Gary Fish, Coordinator Maine Yard. Scaping Partnership (207) 287 -2731 gary. fish@maine. gov

The Partnership is very diverse!

Yard. Scaping • A new paradigm? • Some call it “Sustainable Landscaping” or “Ecological Landscaping” • We want to keep it simple

Yard. Scaping Mission • To inspire Maine people to – create and maintain healthy landscapes – through ecologically based practices that – minimize reliance on water, fertilizer and pesticides

The Ten-ets of Yard. Scaping • Promote buffers • Promote appropriate plants - native plants and non-invasive alien plants • Reduce lawn area • Reduce runoff • Reduce reliance on pesticides, fertilizers and water • Promote low input lawns and landscapes • Promote Yard. Scape diversity • Create wildlife habitats • Right plant, right place, right use • Commonsense pest management (IPM)

Use site appropriate, non-invasive plants • Native plants are often well adapted – Fewer problems, less work, more rewards, but not all are problem free, e. g. , viburnums • Invasive plants are easy to grow but crowd out native vegetation – Our local forest habitats are changing rapidly – Invasive plants can ruin wildlife habitat Beautiful Native Shadbush Problematic Native Viburnum Deadly Invasive Oriental Bittersweet

Right plant, right place, right purpose • Choose plants based on the area to be planted not just for their color • Select plants that thrive under existing conditions rather than trying to alter the conditions to meet the needs of a plant • Minimize disturbance of the existing landscape Wild Cranberry Bog

Right plant, right place Beach plum – dry sunny site Partridgeberry – wet shady site Staghorn Sumac – large open dry bank

Use a diversity of plants & grasses • Monocultures lead to disasters • Diversity leads to less noticeable damage from pests and disease – Incorporate many layers of plant types • • • Trees Shrubs Ground covers Perennials, and Lawns

Create wildlife habitats • Diversity and plant layers go hand in hand with habitat creation • Add nectar and fruit producing plants • Strive for continuous blooms • Add water, walls, feeders, woody debris

Reduce lawn area • Reduces – Water & air pollution – Water usage – Maintenance – Costs • Gives – More free time Mower exhaust = 11 small cars’ exhaust One hour on riding mower = 400 miles

Use low input plant varieties • Fine fescue or tall fescue instead of Kentucky bluegrass and ryegrass • Pagoda dogwood vs flowering cherry • River birch vs paper birch Fine fescue Tall fescue

Protect lakes & streams with buffers • Preserve existing landscape • Winding paths • Don’t mow to lake’s edge • Leave the duff

Reduce runoff • Reduce amount of pervious (hard) surfaces • Create rain gardens or install rain barrels • Direct water into vegetated areas Porous pavement

Reduce reliance on pesticides, fertilizers and water • Grow plants that are resistant to insects & diseases • Use plants that tolerate low fertility White Fir • Use drought resistant plants Sweet Fern

Use common sense pest management • Integrated pest management – Know your pest – Pick it, trap it or exclude it – Know the good bugs – Mow, prune or water – Use pesticides as last resort

Weed Control Approach (BASIC STRATEGY - dense, tall turf tends to reduce weed invasion) Seed is the best weed control! Mow high, 3 inches MINIMUM Promote root growth – fertilize in early fall Reduce wear and compaction - encourage foot traffic away from turf; core aerify twice per year and overseed at same time Overseed or slit-seed open areas ASAP! Spot treatment with herbicides only when necessary.

Are there alternatives? Corn gluten meal has demonstrated pre-emergent herbicide activity Rather expensive and a weak herbicide Most action - nutrient value from meal breakdown - added fertility thickens turf and reduces weed germination Weed flamers and spikes “Punto” Hot water foam and steamers Mostly used in cities where herbicides have been banned Punto

Choose the right grass varieties for Maine

Insect tolerance Some Excellent Good Disease tolerance Some Good

Plant or over-seed with low maintenance grass types • Fine Fescues 40 - 50% – Creeping Red – Hard – Chewings • Tall Fescue Yard. Scaping Mix 40% Endophyte Enhanced Creeping Red Fescue 10% Southport Chewings Fescue 30% Endophyte Enhanced Perennial Ryegrass 20% Kenblue KBG • Common Kentucky Bluegrass • Endophyte enhanced perennial rye or fescues • Plant grass seed in late summer/early fall • Avoid sod

Low Maintenance Lawn Benefits – 2000 CMHC study of 30 residences • Residents with lowmaintenance lawns spent – 50 per cent less time, – 85 per cent less money, and • used – 50 per cent less fuel, – 85 per cent less fertilizer, – 100 per cent less water and http: //www. cmhc-schl. gc. ca/en/burema/gesein/abhose_076. cfm – 100 per cent less pesticides per year