Miscellaneous Reports Index 2018 - 2025 - Landscape and Nursery IPM Alert

TopicReport Date
Abiotic problem on boxwood23Dec14 (bronzing of foliage)
Acorn set23Oct13, 23Oct06 (heavy)
Adjuvants23May12 
Adventitious roots

24Aug09 (rosemary)

18May04 (cherry)

Animals (hoarding food?)20Aug21
Apple phenology blooms and fruit set24Apr05
Arizona cypress 'Blue Ice' in Maryland24Aug16
Asphalt around plantings20Jun26
Bad looking hollies18May18
Bad planting sites19Jun07
Banana 'Basjoo' (cold hardy)19May03
Bats (beneficial)

23Mar02 (long-eared bats and timber harvests)

18Aug17, 18Jun29

Batteries and the environment22Sep02
Batteries, electronics, and heat24Jul26
Birds, as predators of insects

25Apr04
24Feb29 (in nurseries)

23Oct06

Bloom, delayed and out of season

21Jan15, 21Feb12

20Nov13
18Nov02, 18Oct19, 18Oct12

Browning oaks in the landscape20Sep25, 19Oct11
Burning of turf from pet urine21Sep10
Cherry defoliation18Aug03
Christmas tree availability (and bad weather)21Oct29
Containers22May13 (poor quality shipped in)
Corn that fixes nitrogen18Aug31
Coyotes in Maryland20Sep25
Crape myrtles24Mar22 and 24Feb29 (pruning issues), 24Feb21 (single stem)
Crows and ravens18Aug17, 18Aug03, 18Jul27
Daikon radish

24Feb29 and 24Feb21 (still seeing green tops this late)

22Sep16, 22Sep09

Damage (from various animals)

25Oct31 (in turf), 25Jun13 (ground hog, finch, and sparrow)
24Aug09 (porcupine)

21May28

Damage, cold/winter

24Mar29

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

21Apr30, 21Feb26

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

Damage, deer

25Apr18
24Sep27 (on arborvitae), 24May10

23Apr07

22Mar25 
21Apr23 
20Nov13
19Apr12, 19Apr05

18Aug03, 18Jun01

Damage, after extended dry periods19Oct11, 19Oct04
Damage, after extended wet periods19May03, 19Apr26 (on Taxus yews)
Damage, cracks23May05 (crabapples)
Damage, foliar25Jun27, 25Jun20 (mottled leaves on crape myrtle)
22May27 (due to bud injury), 22May06 (abiotic 'bruising on strawberry)
Damage, freeze and frost25Jun13 (boxwood), 25Apr11 (boxwood)
20Apr17
Damage, girdling

24Apr12

23Apr21 (not removing nylon twine)

Damage, herbicide23Aug04 
20Sep18 (and fertilization)
Damage, lightning25Jul11
20Jul10
18Aug24
Damage, ozone22Jul29
Damage, from plant growth regulators20Jul10, 20Jul02
Damage, raccoon20Oct30
Damage, red fox20Nov13
Damage, roof cleaning chemicals25Mar28
Damage, salt25Apr04
Damage, snail20May08
Damage and activity, squirrel

24Oct04, 24Aug02

22Apr08 
20May22, 20Apr03
19Aug16 (management), 19Aug09 (American hornbeam), 19Aug02 (zelkova)

Damage, storm

24Apr05

22Jul29, 22Jul22, 22Jul15 
21Jun04

Damage, sunscald21Jul16
Damage, rabbits25Aug22
Damage, voles and rabbits21Apr16
Damage, moles and voles22Apr29 (voles), 22Mar25
Damage, winter25Apr04, 25Mar28
23Apr28 (on arborvitae)
Damage, woodpecker/sapsucker

24May24, 24Apr19, 24Apr12

23Apr28, 23Apr07, 23Mar24

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

20Nov13, 20Sep25, 20May15, 20May01, 20Apr10, 20Apr03
19Sep13

Dead ash trees18Oct12
Deer

24Aug16

23Oct13, 23Sep15, 23Sep08, 23Aug11

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

Defoliation (leaf drop), premature

25Jun06 (American holly)
24Sep06, 24Aug16, 24Jun14 (cherry), 24May24 and 24May17 (callery pear)

23Sep15  
22May06 (American holly) 
20Oct09
19Oct18 (cherry), 19Oct11 (cherry trees and honeylocust)

Diagnosing problems20May29
Dieback, arborvitae23Oct27
Dieback, Japanese maple18Apr20
Digging nursery trees in dry ground20Oct02
Digital photos: aiding a diagnosis20Mar27
Diseases causing plant collapse24Oct04
Disease field trials on fruit trees18May04
Dogwood, color change on bracts22Jun10
Drainage in nurseries18Jun01
Drones20Nov24
19Jun14
Drought - impact on plants25May02 (arborvitae)
23Jun02 
22Sep02   
18Jul06 (turf)
Drought, impact on spraying pesticides23Jun09
Drought (management practices)25Aug29
23Sep01
Dying arborvitae24Sep13, 24Sep06
Electric equipment23Jun09 (vehicles) 
22Nov22
Energy savings in horticulture22Aug26
Excessive fig growth21Oct29
Excessive mulch18Apr20
Exfoliating bark21Jul23
Fall color23Oct20 (and leaf blowers)  
22Oct14 (white pines) 
20Oct16
Fertility management24Apr12 (growing season management, also fruit trees)
19Sep06 (fall fertilization)
Fertility management - difficulties of lowering pH20Apr24
Fertility management - Nitrogen20Apr03
Fertilizer alternatives22May27
Fertilizer costs22Apr15
Fish, snakehead22Jul15
Flowering, out of season19Sep20
Frog, tree21Mar12
Frog, Cuban tree (invasive)21Apr16
Fruit, new apple cultivars23Sep29
Fruit, beach plums20Jun05, 20May08
Fruit, disease resistant pears23Nov30, 23Mar31
Fruit - home growers20Jun26, 20May22, 20May15, 20Apr24, 20Apr17, 20Apr10, 20Apr03
19Jun14, 19Apr05
Fruit insect management18Jun15
Fruit insect and disease management

24Mar29

20Mar27

Fruit - IPM and Plant Resistance23Apr14
Fruit, premature drop21Jul09 (Oriental persimmon)
Fruit, paw paw

24Sep06, 24Aug02 (ripening)

23Sep29, 23Sep22 (problems), 23Sep08 (cracking fruit)

Fruit thinning and/or pruning

24May24, 24May17

23May05, 23Jan04  
21May28 
20Nov24 (figs), 20Nov13
19Jul12, 19Jun21
18Jun01

Gas-powered equipment ban (Baltimore City)24Oct11
Garden, public (in Howard County)24May03
Gas-powered leaf blower banned in Montgomery County23Sep29
Girdling20Oct02, 20Jun19, 20Apr24
18Apr20
Gummosis23Jun16
Guttation20Jun19
Hail25Jun06
20May01 (likely hail damage)
Herbicide drift and volatilization19Jun14
18May11
Hinoki cypress problems24May24
Honey bee - slapping ants to keep out of hive24Jul26
Honeydew (and sooty mold) removal from woody plants24Jul26 (creative way to keep it off cars), 24May03
Hopper burn18Jul13
Horticultural oil

23Apr28

22Oct28 (fall applications) 
20Nov13, 20Jun26 (impact on blue foliage of hostas), 20Mar27
19Apr05

How insects survive the winter18Nov02
Impact of heavy rains18Aug03
Industrial hemp19Jun14, 19Apr26
Insect activity on fruit18Jul27
Insects (spread through travel)24Mar29
Labor shortage21Jul02
Landfill problems20Apr17
Leaf drop (early)19Jul19 (river birch)
Leafdrop, on holly in spring   20May08
Leaves (left in place, pest issues)24Mar22
Lichen20Jul10
19May03, 19Apr05
Lights (LED)24Feb29
Liverworts25Oct24
Lyme disease vaccine status update22Aug12
Magnolia, seed pods19Jul12
Maryland Department of Agriculture - Nursery Inspection program23Oct20
Microbial products (unregulated)22Jul15
Montgomery County, MD Pesticide Law19Jun21, 19Jun14, 19Jun07
Mowers, electric zero turn23Feb15
Mulch volcano

24Sep06

23Sep22
20Apr10
16Mar18

Mulch, overmulching23Jun23 
18Oct05
Nickel and plant growth22Aug05
Northern flicker damage in turf18May04
Nutsedge control18Jun29
Oak decline23Oct06 (Anne Arundel County Report)
Paving around a tree24May24
Peaches, growing22Jun24
Personal mosquito control18Jul06
Pesticide ban22Jul15 (Baltimore City)
pH levels25Mar28 (impact of pine needles)
Plant dieback18Sep07
Pollen

25Apr11 (trees)
24May24, 24May03

23Oct06 (pollen for bees)  
21Jun04 (heavy)

Pollution, smoke23Jun09 (from wildfires in Canada)
Poor fruit set18Jul06 (tomato)
Privet problems24May31
Problems, apple18Oct19
Problems, boxwood18Jun01
Problems, cherry laurel18Oct19, 18Oct12
Problems, crape myrtle18Jun08, 18Jun01
Problems, deer18Jun22
Problems, Japanese maple18Aug24
Problems, Leyland Cypress18Apr06
Problems, roots (lack of)19Aug30 (on dwarf blue spruce)
Problems, tomato18Aug03
Problems, zelkova18Jun08, 18Jun01
Pruning, fall23Apr07
Pruning, root (problems)23Jul21 
Pumpkin (and the season's weather)20Sep25

Redbud problems

Redbud, vascular streak dieback

22Jul15

22Aug05 
Research, horticulture at Wye Research and Education Center24Jun28
Research, transparent wood21Feb12
Reversion (genetic)24Oct25
Screening plants18Jul06, 18Jun29
Seed preservation18Apr06
Shears (small, portable, electric)19Jul19
Solar panels20Jun26
Spring fertility update18Apr27
Snakes in the landscape19Jun28
18Jun08
Stanton Gill Symposium25Jun27
Stress, heat and drought24Aug16 (turf in summer)
Summer annual grass control18Sep14
Summer leaf drop18Jul20
Sunscald on vegetable leaves18May25
Swelling on apple trees20Oct09
Temperature and Fertilizer18Jul06
Temperature and plant installations23Mar02
Tick activity18Jun01
Tough places for plants18Jun22
Toxicity: Is cherry laurel toxic?20May01
Tree decline and wood decay fungi21Oct29
Tree protection22Jul08
Turtles22Jun24 (snapping turtle) 
18Jun08
Unusual weather side effect   18Jul27
Urban Nutrient Management Regulation Changes18Sep28
Urea shortage22Jun10
Vegetables, and impact of flooding20Aug07
Vehicles20Jul02 (electric trucks)
Voles19May10
Water chestnut control18Sep14
Water quality on pesticide performance18Apr27
Weather and disease update18Jun08, 18Jun01
Wildlife23Jun23 (raccoons)
Wings, how insects got their21May28
Winter damage18Jun15, 18May25, 18May11
Winter, mild20Mar20 (lack of leaf abscission)
Winter, protection of figs24Jan17
Wire baskets and problems with trees21Jun18
Wires, guy25Oct24
Worms, hammerhead25Sep05, 25Jul11
Worms, jumping (invasive)23Jul14 
22Sep02, 22Apr01 
21May28
Wrapping trees for ambrosia beetle18Apr27
Yellowing of Leyland cypress23Jun16