Pest Control for Black Sooty Mold

Black Sooty Mold is a very common landscape issue.

You may wonder why a pest control company is concerned about mold in your landscape and on your trees and plants … it’s because insects are the reason for the mold.

Plant sucking insects damage your trees and shrubs then excrete what they can’t digest in the form of sweet liquid called honeydew.

Some of these leaves are completely covered with sooty mold.

Black sooty mold is a common name give to various species of fungi that develop on plants and trees which are covered in honeydew.

Honeydew coats the leaves to the point that it reduces the ability for sunlight to penetrate causing photosynthesis to be reduced significantly.

Wherever there is honeydew, black sooty mold will grow and without photosynthesis, plants won’t grow; leaves age, and then die.

Some of the honeydew producing insects include: soft scales and mealybugs, aphids, leafhoppers, Psyllid, and whiteflies.

Farming for Honeydew

Aphids not only create honeydew, which causes sooty mold – they attract ants!

The biggest honeydew-making culprits are aphids. There are others but aphids have found protection from predators via ants.

Ever notice ants on your plants? Ants love honeydew. Turn a leaf over and you may see more ants milling about with a bunch of aphids. They’ve bonded and created a relationship that is beneficial for both insect families.

Ants “farming” aphids under a leaf; inset is the result of honeydew turned mold.

Aphids emit honeydew from their rear ends for ants to consume in exchange for protection from predators such as ladybugs, parasitic wasps, earwigs, and lacewing larvae.

Ants “farm” by herding aphids onto the underside of a leaf where the aphids can hide and be available to them for obtaining honeydew.

Honeydew makes plants sticky, allowing the growth of sooty mold.

Treatment for Sooty Mold

Black sooty mold = sucking insects. The first step to controlling sooty mold is to get rid of as many honeydew creating insects as possible.

Ant receiving honeydew from an aphid.

Most plants can tolerate a few insects and some sooty mold but if you have a lot of sap sucking insects, then you definitely need pest control.

Aphids are notorious for attacking new growth where leaves and stems are tender – when they eat, they excrete!

As part of our landscape maintenance program, Hearts Pest Management has both traditional and organic methods for treating insects that cause sooty mold to develop.

You can cosmetically remove the mold by spraying leaves with soap and water but to actually get rid of it you’ll need to treat the source – honeydew producers.

Hearts offers free landscape inspections. Call today to schedule an inspection and learn more about our treatment programs.

Call Now 1-800-986-1006 or complete the form below

Where Captcha Goes if Used code in footer


City Services for Pest Control in Los Angeles
Los Angeles • 800-986-1006
Agoura Hills North Hollywood
Alhambra Northridge
Arcadia Pacific Palisades
Beverly Hills Palos Verdes Estates
Burbank Pasadena
Calabasas Pomona
Cerritos Rancho Palos Verdes
City of Industry Redondo Beach
City of Los Angeles Reseda
Claremont Rolling Hills Estates
Culver City Santa Fe Springs
Cypress Santa Monica
Diamond Bar Sherman Oaks
El Monte Sylmar
El Segundo Tarzana
Encino Toluca Lake
Glendale Torrance
Granada Hills Venice
Hacienda Heights Walnut
Hidden Hills West Covina
Hollywood West Hollywood
La Verne West Los Angeles
Long Beach Westlake Village
Malibu Whittier
Manhattan Beach Woodland Hills
Marina Del Rey

City Services for Pest Control in Orange County
Orange County • 800-986-1006
Aliso Viejo Laguna Hills
Anaheim Laguna Niguel
Brea Lake Forest
Buena Park Los Alamitos
Capistrano Beach Mission Viejo
City of Orange Newport Beach
Corona Del Mar Orange
Costa Mesa Rancho Santa Margarita
Dana Point Rossmoor
Fountain Valley San Clemente
Fullerton San Juan Capistrano
Garden Grove Santa Ana
Huntington Beach Tustin
Irvine Villa Park
La Habra Westminster
Laguna Beach Yorba Linda

City Services for Pest Control in San Diego
San Diego Inland • 858-486-1006
4S Ranch Rancho Penasquitos
Poway Scripps Ranch
Rancho Bernardo
Back Country • 760-789-4004
Descanso Ramona
Julian Santa Ysabel
Pine Valley
North Inland • 760-745-1331
Bonsall Hidden Meadows
Escondido Pauma Valley
Fallbrook Valley Center
San Diego City • 619-440-6080
Carlsbad Pacific Beach
Coronado Point Loma
La Costa San Ysidro
Mira Mesa The City of San Diego
Otay Mesa
North Coastal • 760-753-8008
Cardiff By The Sea Oceanside
Carmel Valley Rancho Santa Fe
Del Mar San Marcos
Encinitas Solana Beach
La Jolla Vista
South - East San Diego • 619-440-6080
Alpine Imperial Beach
Bonita Jamul
Chula Vista La Mesa
East Lakes Chula Vista Lakeside
El Cajon Santee

City Services for Pest Control in Ventura
Ventura • 800-986-1006
Moorpark Thousand Oaks
Simi Valley

City Services for Pest Control in Riverside
Riverside • 951-693-5005
Canyon Lake Norco
Chino Hills Perris
Corona Sun City
Eastvale Temecula
Lake Elsinore The City of Riverside
Menifee Wildomar
Moreno Valley Winchester

City Services for Pest Control in San Bernardino
San Bernardino • 909-793-0252
Chino Ontario
Fontana Rancho Cucamonga
Highland Redlands
Loma Linda Upland
Montclair Yucaipa