Harrell's Compendium of Tropical Plant Diseases & Disorders

TROPICAL PLANTS COMMONLY AFFLICTED BY ALGAL LEAF SPOTS Tradename

MANAGEMENT RECOMMENDATION

FRAC Group

chlorothalonil

Daconil Ultrex®, Daconil Weatherstik®

M5

iprodione

Chipco® 26019 Flo, Chipco® 26019 WP

2

mancozeb

Protect TM DF, Manzate®

M03

DMI

Avelyo®, Eagle®, Terraguard®

3

+ A void using infected seed, plugs or cuttings. Eliminate overhead irrigation or exposure to rainfall. Water during the day when plant leaves have the greatest cache to dry quickly. Provide uniform spray coverage of both sides of the leaf for adequate control and add a wetting agent when leaves are very waxy.

DMI + SDHI

Postiva TM

3 + 7

Compass®, Heritage®, Empress® Intrinsic®, Fame®

strobilurin

11

strobilurin + SDHI

Broadform®, Orkestra® Intrinsic®, Mural®

7+11

fludioxonil

Medallion®, Emblem TM

12

Follow the product label and rotate between FRAC groups to reduce resistanace development

TROPICAL PLANTS COMMONLY AFFLICTED BY MYROTHECIUM DISEASES

Aglaonema Anthurium

leaf spot leaf spot leaf spot leaf spot leaf spot leaf spot leaf spot petiole rot

Dieffenbachia

Ferns

Gardenia

Ficus

New Guinea Impatiens

Spathiphyllum

Syngonium

petiole rot

Reach out to your Harrell’s rep for more information.

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