Miscellaneous Reports Index 2016 - 2023 - Landscape and Nursery IPM Alert (links are set back to 2018)

Topic Report Date
Abiotic problem on boxwood 23Dec14 (bronzing of foliage)
16Apr22 (in full sun after winter)
Abiotic problem on hosta 16Apr22 (frost)
Acorn set

23Oct13, 23Oct06 (heavy)
16Oct14
Adjuvants 23May12 
Adventitious roots on cherry 18May04
Animals (hoarding food?) 20Aug21
Asphalt around plantings 20Jun26
Bad looking hollies 18May18
Bad planting sites 19Jun07
Banana 'Basjoo' (cold hardy) 19May03
Bats (beneficial)

23Mar02 (long-eared bats and timber harvests)

18Aug17, 18Jun29
Batteries and the environment 22Sep02
Bears in Maryland 16Jun17
Biofouling of irrigation systems 17May05
Birds, as predators of insects 23Oct06
19Mar29, 16Sep23
Bloom, delayed and out of season

21Jan15, 21Feb12

20Nov13
18Nov02, 18Oct19, 18Oct12
Browning oaks in the landscape 20Sep25, 19Oct11
Burning of turf from pet urine 21Sep10
Cherry defoliation 18Aug03
Christmas tree availability (and bad weather) 21Oct29
Cobwebs in turf 17May19
Containers 22May13 (poor quality shipped in)
Corn that fixes nitrogen 18Aug31
Coyotes in Maryland 20Sep25
Crows and ravens 18Aug17, 18Aug03, 18Jul27
Daikon radish 22Sep16, 22Sep09
Damage (from various animals) 21May28
Damage, cold/winter

22May06 (ginkgo), 22May06, 22Apr22, 22Apr15 (fruit), 22Apr01

21Apr30, 21Feb26

20May29, 20May22, 20May15, 20May08, 20May01, 20Apr24
19Jul12 (crapemyrtle), 19Apr05, 19Mar29

17Mar24

16Apr08
Damage, deer

23Apr07

22Mar25 
21Apr23 
20Nov13
19Apr12, 19Apr05

18Aug03, 18Jun01
Damage, after extended dry periods 19Oct11, 19Oct04
Damage, after extended wet periods 19May03, 19Apr26 (on Taxus yews)
Damage, cracks 23May05 (crabapples)
Damage, foliar 22May27 (due to bud injury), 22May06 (abiotic 'bruising on strawberry)
Damage, freeze and frost 20Apr17
Damage, girdling 23Apr21 (not removing nylon twine)
Damage, herbicide 23Aug04 
20Sep18 (and fertilization)
17Jun16
Damage, lightning

20Jul10
18Aug24

16Jul29, 16Jul22
Damage, ozone 22Jul29
Damage, from plant growth regulators 20Jul10, 20Jul02
Damage, raccoon 20Oct30
Damage, red fox 20Nov13
Damage, salt

16Mar25 (pansies and violas)
Damage, snail 20May08
Damage, squirrel

22Apr08 
20May22, 20Apr03
19Aug16 (management), 19Aug09 (American hornbeam), 19Aug02 (zelkova)
Damage, storm 22Jul29, 22Jul22, 22Jul15 
21Jun04
Damage, sunscald 21Jul16
Damage, tree support 16Oct07
Damage, voles and rabbits 21Apr16
Damage, moles and voles 22Apr29 (voles), 22Mar25
Damage, winter 23Apr28 (on arborvitae)
Damage, woodpecker/sapsucker

23Apr28, 23Apr07, 23Mar24

22May06, 22Mar25 
21Jun11, 21May14, 21Feb12

20Nov13, 20Sep25, 20May15, 20May01, 20Apr10, 20Apr03
19Sep13, 19Mar29
16May27, 16Mar18
Dead ash trees

18Oct12
Deer

23Oct13, 23Sep15, 23Sep08, 23Aug11

22Sep02, 22Jan11
20Sep04, 20May22 (correction to plant ID), 20May15 (deer resistant plants)
19Aug16
18Nov02, 18Oct19
Defoliation (leaf drop), premature

23Sep15  
22May06 (American holly) 
20Oct09
19Oct18 (cherry), 19Oct11 (cherry trees and honeylocust)
16Sep23, 16Jul29
Diagnosing problems 20May29
Dieback, arborvitae 23Oct27
Dieback, Japanese maple 18Apr20
Digging nursery trees in dry ground 20Oct02
Digital photos: aiding a diagnosis 20Mar27
Disease field trials on fruit trees 18May04
Dogwood, color change on bracts 22Jun10
Drainage in nurseries 18Jun01
Drones 20Nov24
19Jun14
Drought - impact on plants 23Jun02 
22Sep02   
18Jul06 (turf)
Drought, impact on spraying pesticides 23Jun09
Drought (management practices) 23Sep01
Earthworm (nightcrawlers) 16May13
Electric equipment 23Jun09 (vehicles) 
22Nov22
Energy savings in horticulture 22Aug26
Excessive fig growth 21Oct29
Excessive mulch 18Apr20
Exfoliating bark 21Jul23
Fall color 23Oct20 (and leaf blowers)  
22Oct14 (white pines) 
20Oct16
17Aug11 (early)
Fertility management

19Sep06 (fall fertilization)
Fertility management - difficulties of lowering pH 20Apr24
Fertility management - Nitrogen 20Apr03
Fertility management - Saturated soils and potential problems 16May20
Fertility management - Soil or soiless media 16Jul08
Fertilization - Landscape plants 17Mar17
Fertilizer alternatives 22May27
Fertilizer costs 22Apr15
Fish, snakehead 22Jul15
Flowering, out of season 19Sep20
Frog, tree

21Mar12

17Jun09 (predator)
Frog, Cuban tree (invasive) 21Apr16
Fruit, new apple cultivars 23Sep29
Fruit, beach plums 20Jun05, 20May08
Fruit, disease resistant pears 23Nov30, 23Mar31
Fruit - home growers

20Jun26, 20May22, 20May15, 20Apr24, 20Apr17, 20Apr10, 20Apr03
19Jun14, 19Apr05
Fruit insect management 18Jun15
Fruit insect and disease management 20Mar27
Fruit - IPM and Plant Resistance 23Apr14
Fruit, premature drop 21Jul09 (Oriental persimmon)
Fruit, paw paw 23Sep29, 23Sep22 (problems), 23Sep08 (cracking fruit)
Fruit thinning and/or pruning 23May05, 23Jan04  
21May28 
20Nov24 (figs), 20Nov13
19Jul12, 19Jun21
18Jun01
Gas-powered leaf blower banned in Montgomery County 23Sep29
Girdling

20Oct02, 20Jun19, 20Apr24
18Apr20

17May26
Glyphosate 17Sep01
Gummosis 23Jun16
Guttation 20Jun19
Hail 20May01 (likely hail damage)
17Jun02
Herbicide drift and volatilization 19Jun14
18May11
Hopper burn 18Jul13
Horticultural oil

23Apr28

22Oct28 (fall applications) 
20Nov13, 20Jun26 (impact on blue foliage of hostas), 20Mar27
19Apr05
How insects survive the winter 18Nov02
Impact of heavy rains 18Aug03
Industrial hemp 19Jun14, 19Apr26
Insect activity on fruit 18Jul27
Insecticide, Altus 17May26
Labor shortage 21Jul02
Landfill problems 20Apr17
Leaf drop (early)

19Jul19 (river birch)
Leafdrop, on holly in spring    20May08
Leafdrop, hemlock 17Sep29
Lichen

20Jul10
19May03, 19Apr05
Lyme disease vaccine status update 22Aug12
Magnolia, seed pods 19Jul12
Maryland Department of Agriculture - Nursery Inspection program 23Oct20
Microbial products (unregulated) 22Jul15
Montgomery County, MD Pesticide Law 19Jun21, 19Jun14, 19Jun07, 17Aug04
Mowers, electric zero turn 23Feb15
Mulch volcano 23Sep22
20Apr10
16Mar18
Mulch, overmulching 23Jun23 
18Oct05
Mushrooms in turf 17Aug11
Nickel and plant growth 22Aug05
Northern flicker damage in turf 18May04
Nutsedge control 18Jun29
Oak decline 23Oct06 (Anne Arundel County Report)
Peaches, growing 22Jun24
Personal mosquito control 18Jul06
Pesticide ban 22Jul15 (Baltimore City)
Plant dieback 18Sep07
Plastic, recycling 17Mar17
Plastic, in the landscape 17Sep15
Podless sweetgum 17May12
Pollen 23Oct06 (pollen for bees)  
21Jun04 (heavy)
Pollinator activity 17Aug04
Pollution, smoke 23Jun09 (from wildfires in Canada)
Poor fruit set 18Jul06 (tomato)
Predator activity 17May05
Problems, apple 18Oct19
Problems, arborvitae 16Jul08 (deer feeding on bottom and bagworms on top of plant)
Problems, boxwood 18Jun01
Problems, cherry laurel 18Oct19, 18Oct12
Problems, crape myrtle 18Jun08, 18Jun01
Problems, deer 18Jun22
Problems, gingko 16May27
Problems, hollies and insect control issues due to pruning methods 16Jun10
Problems, Hydrangea macrophylla 16May20
Problems, Japanese maple

18Aug24

16May20, 16Apr15
Problems, Leyland Cypress 18Apr06
Problems, roots (lack of) 19Aug30 (on dwarf blue spruce)
Problems, on southern magnolia 16Apr15
Problems, on spruce 17Jul14
Problems, on turf (from bleach used to clean patio furniture) 16Apr15
Problems, tomato 18Aug03
Problems, vegetable pests 17Jun23
Problems, vinca 17Jun16
Problems, zelkova 18Jun08, 18Jun01
Pruning, fall 23Apr07
Pruning, root (problems) 23Jul21 
Pumpkin (and the season's weather) 20Sep25
Rain check 17Aug11 (tomatoes)

Redbud problems

Redbud, vascular streak dieback

 22Jul15

22Aug05 
Renovating soils 17Jun30
Research, transparent wood 21Feb12
Reversion (genetic) - dwarf Alberta spruce 16May27
Screening plants 18Jul06, 18Jun29
Seed preservation 18Apr06
Shears (small, portable, electric) 19Jul19
Solar panels 20Jun26
Spring fertility update 18Apr27
Snakes in the landscape 19Jun28
18Jun08
Summer annual grass control 18Sep14
Summer leaf drop 18Jul20
Sunscald on vegetable leaves 18May25
Sunflower, new 17Jul21
Swelling on apple trees 20Oct09
Temperature and Fertilizer 18Jul06
Temperature and plant installations 23Mar02
Tick activity 18Jun01
Tough places for plants 18Jun22
Toxicity: Is cherry laurel toxic? 20May01
Tree decline and wood decay fungi 21Oct29
Tree girdling 16Jul22
Tree protection 22Jul08
Turtles

22Jun24 (snapping turtle) 
18Jun08

17May26

Unusual weather side effect   

 18Jul27
Urban Nutrient Management Regulation Changes 18Sep28
Urea shortage 22Jun10
Vegetables, and impact of flooding 20Aug07
Vehicles 20Jul02 (electric trucks)
Vinegar as an herbicide 17Jul14
Voles

19May10
16Mar25, 16Mar18
Water chestnut control 18Sep14
Water quality on pesticide performance 18Apr27
Weather update 17July07
Weather and disease update 18Jun08, 18Jun01
Weed control in containers 17Apr28
Wildlife 23Jun23 (raccoons)
Wings, how insects got their 21May28
Winter damage 18Jun15, 18May25, 18May11
Winter, mild 20Mar20 (lack of leaf abscission)
Winter survival 17Oct27
Wire baskets and problems with trees 21Jun18
Wiring and trees 17Sep01
Woody plants - short supply

17Aug11
Worms, jumping (invasive) 23Jul14 
22Sep02, 22Apr01 
21May28
Wrapping trees for ambrosia beetle 18Apr27
Yellowing of Leyland cypress 23Jun16