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Maple
Aphids: Formulations of abamectin, acephate, acetamiprid, azadirachtin, Beauveria bassiana, bifenthrin (Bifenthrin Pro Multi-Insecticide, Onyx Insecticide, Talstar F, Talstar Lawn & Tree Flowable, Talstar GC Flowable, Talstar Nursery Flowable, and TalstarOne Multi-Insecticide only), chlorpyrifos (Dursban 50W only), cyfluthrin, cyfluthrin and imidacloprid, deltamethrin, dinotefuran, disulfoton, fenpropathrin, horticultural oil, hydrophobic extract of neem oil, imidacloprid, lambda-cyhalothrin (Battle GC, Demand CS, Scimitar CS, Scimitar GC, and Scimitar WP only), malathion, naled, oxydemeton-methyl, permethrin (Astro Insecticide and Permethrin Pro only), pymetrozine, pyrethrins and piperonyl butoxide, pyriproxyfen, tau-fluvalinate, and thiamethoxam are labeled for aphid management. Marathon 1% G and Marathon 60 WP are labeled for use only on plants grown in containers, flats, benches, or beds.
Management Hints: Treat when aphids first appear in the spring. Repeat applications may be needed. Malathion may cause slight injury to maples. (pp. 302, 304)
Calico Scale: Horticultural spray oil can be applied as a dormant treatment. Crawlers may be managed with formulations of acephate, azadirachtin (Ornazin 3% EC only), buprofezin, carbaryl, chlorpyrifos (Dursban 50W only), cyfluthrin, cyfluthrin and imidacloprid, deltamethrin, dinotefuran, horticultural oil, hydrophobic extract of neem oil, imidacloprid, insecticidal soap, lambda-cyhalothrin (Battle GC, Demand CS, Scimitar CS, Scimitar GC, and Scimitar WP only), methidathion, and thiamethoxam. Marathon 1% G and Marathon 60 WP are labeled for use only on plants grown in containers, flats, benches, or beds. Do not apply insecticidal soap to Japanese maple.
Management Hints: Select and apply horticultural spray oils according to label directions. Crawlers may be managed when they are active in June through early July. Repeat applications may be needed. (p. 354)
Cankerworm: Formulations of azadirachtin, Bacillus thuringiensis, bifenthrin (Bifenthrin Pro Multi-Insecticide, Onyx Insecticide, Talstar F, Talstar Lawn & Tree Flowable, Talstar GC Flowable, Talstar Nursery Flowable, and TalstarOne Multi-Insecticide only), carbaryl, chlorpyrifos (Dursban 50W only), cryolite, cyfluthrin, cyfluthrin and imidacloprid, deltamethrin, diflubenzuron, lambda-cyhalothrin (Battle GC, Demand CS, Scimitar CS, Scimitar GC, and Scimitar WP only), naled, permethrin (Astro Insecticide and Permethrin Pro only), phosmet (spring cankerworm only), pyrethrins and piperonyl butoxide, spinosad, tau-fluvalinate, and tebufenozide (fall cankerworm only) are labeled for cankerworm management. Formulations of acephate and phosmet are labeled to manage cankerworm on maple.
Management Hints: Apply in May after leaves have formed, but only if caterpillars are present. (pp. 142, 144)
Cottony Maple Scale: Apply horticultural spray oil as a dormant treatment. Formulations of acephate, acetamiprid, azadirachtin (Ornazin 3% EC only), buprofezin, carbaryl, chlorpyrifos (Dursban 50W only), cyfluthrin, cyfluthrin and imidacloprid, deltamethrin, dinotefuran, horticultural oil, hydrophobic extract of neem oil, imidacloprid, insecticidal soap, lambda-cyhalothrin (Battle GC, Demand CS, Scimitar CS, Scimitar GC, and Scimitar WP only), methidathion, and thiamethoxam are labeled for crawler management. Marathon 1% G and Marathon 60 WP are labeled for use only on plants grown in containers, flats, benches, or beds.
Management Hints: Select and apply horticultural spray oil according to label directions. This species is frequently attacked by natural enemies when population levels are high, resulting in the decline of an infestation after 2 or 3 years. Crawlers emerge from eggs during mid-June through mid-July. Repeat applications may be needed. Do not apply insecticidal soap to Japanese maple. (p. 340)
Elm Spanworm: Formulations of acephate, azadirachtin, Bacillus thuringiensis, bifenthrin (Bifenthrin Pro Multi-Insecticide, Onyx Insecticide, Talstar F, Talstar Lawn & Tree Flowable, Talstar GC Flowable, Talstar Nursery Flowable, and TalstarOne Multi-Insecticide only), carbaryl, chlorpyrifos (Dursban 50W only), cryolite, cyfluthrin, cyfluthrin and imidacloprid, deltamethrin, diflubenzuron, lambda-cyhalothrin (Battle GC, Demand CS, Scimitar CS, Scimitar GC, and Scimitar WP only), permethrin (Astro Insecticide and Permethrin Pro only), phosmet, pyrethrins and piperonyl butoxide, tau-fluvalinate, and tebufenozide are labeled to manage this pest.
Management Hints: Apply when small larvae are active in mid- to late May. (pp. 144, 146)
European Fruit Lecanium: Refer to the suggestions above under cottony maple scale for management strategies and timing only. Do not apply insecticidal soap to Japanese maple. (p. 364)
Fall Webworm: Formulations of acephate, azadirachtin, Bacillus thuringiensis, bifenthrin (Bifenthrin Pro Multi-Insecticide, Onyx Insecticide, Talstar F, Talstar Lawn & Tree Flowable, Talstar GC Flowable, Talstar Nursery Flowable, and TalstarOne Multi-Insecticide only), carbaryl, chlorpyrifos (Dursban 50W only), cryolite, cyfluthrin, cyfluthrin and imidacloprid, deltamethrin, diflubenzuron, lambda-cyhalothrin, naled, permethrin (Astro Insecticide and Permethrin Pro only), pyrethrins and piperonyl butoxide, spinosad, taufluvalinate, tebufenozide, and trichlorfon are labeled for fall webworm management.
Management Hints: Treat when webs first appear from late June through July. (p. 166)
Forest Tent Caterpillar: Formulations of acephate, azadirachtin, Bacillus thuringiensis, bifenthrin (Bifenthrin Pro Multi-Insecticide, Onyx Insecticide, Talstar F, Talstar Lawn & Tree Flowable, Talstar GC Flowable, Talstar Nursery Flowable, and TalstarOne Multi-Insecticide only), carbaryl, chlorpyrifos (Dursban 50W only), cryolite, cyfluthrin, cyfluthrin and imidacloprid, deltamethrin, diflubenzuron, lambda-cyhalothrin, malathion, naled, permethrin (Astro Insecticide and Permethrin Pro only), pyrethrins and piperonyl butoxide, spinosad, tau-fluvalinate, and tebufenozide are labeled for management of this pest.
Management Hints: Apply when small larvae are active in mid-May. Malathion may cause slight injury to maple.(p.168)
Gloomy Scale: Formulations of acephate, azadirachtin (Ornazin 3% EC only), buprofezin, carbaryl, chlorpyrifos (Dursban 50W only), cyfluthrin, cyfluthrin and imidacloprid, deltamethrin, dinotefuran, horticultural oil, hydrophobic extract of neem oil, insecticidal soap, lambda-cyhalothrin (Battle GC, Demand CS, Scimitar CS, Scimitar GC, and Scimitar WP only), and methidathion are labeled for crawler management.
Management Hints: Select and apply horticultural spray oil according to label directions. Crawlers are active from early July through August. Repeat applications may be needed. Do not apply insecticidal soap to Japanese maple. (p. 384)
Greenstriped Mapleworm: Formulations of acephate, azadirachtin, Bacillus thuringiensis (DiPel DF, DiPel ES, DiPel Pro DF, and Foray 48F), bifenthrin (Bifenthrin Pro Multi-Insecticide, Onyx Insecticide, Talstar F, Talstar Lawn & Tree Flowable, Talstar GC Flowable, Talstar Nursery Flowable, and TalstarOne Multi-Insecticide only), carbaryl, chlorpyrifos (Dursban 50W only), cryolite, cyfluthrin, cyfluthrin and imidacloprid, deltamethrin, lambda-cyhalothrin, permethrin (Astro Insecticide and Permethrin Pro only), pyrethrins and piperonyl butoxide, and tau-fluvalinate are labeled for management of this pest.
Management Hints: This insect may produce two to three generations annually. Treat foliage when larvae are first seen and repeat applications when necessary. (p. 156)
Japanese Beetle: Formulations of acephate, acetamiprid, azadirachtin, bifenthrin (Bifenthrin Pro Multi-Insecticide, Onyx Insecticide, Talstar F, Talstar Lawn & Tree Flowable, Talstar GC Flowable, Talstar Nursery Flowable, and TalstarOne Multi-Insecticide only), carbaryl, chlorpyrifos (Dursban 50W only), cyfluthrin, cyfluthrin and imidacloprid, deltamethrin, dinotefuran, fenpropathrin, imidacloprid, lambda-cyhalothrin, malathion, permethrin (Astro Insecticide and Permethrin Pro only), phosmet, and pyrethrins and piperonyl butoxide are labeled for management of adults. Formulations of imidacloprid (Merit 2, Merit 75 WP, and Merit 75 WSP) are also labeled for management of white grub larvae such as Japanese beetle, chafers, Oriental beetle, Asiatic garden beetle, and Phyllophaga spp. Marathon 1% G and Marathon 60 WP are labeled for use only on plants grown in containers, flats, benches, or beds. Merit 2.5 G is labeled for use on ornamental shrubs and small trees in outdoor landscapes and interior plantscapes against Japanese beetle adults.
Management Hints: Manage adults when they are active from late June through July. Malathion may cause slight injury to maples. (p. 236)
Leafhopper: Formulations of acephate, acetamiprid, azadirachtin, bifenthrin (Bifenthrin Pro Multi-Insecticide, Onyx Insecticide, Talstar F, Talstar Lawn & Tree Flowable, Talstar GC Flowable, Talstar Nursery Flowable, and TalstarOne Multi-Insecticide only), buprofezin, carbaryl, chlorpyrifos (Dursban 50W only), cyfluthrin, cyfluthrin and imidacloprid, deltamethrin, disulfoton, fenpropathrin, hydrophobic extract of neem oil, imidacloprid, insecticidal soap, lambda-cyhalothrin (Battle GC, Demand CS, Scimitar CS, Scimitar GC, and Scimitar WP only), malathion, permethrin, phosmet, pyrethrins and piperonyl butoxide, tau-fluvalinate, and thiamethoxam are labeled for leafhopper management. Malathion may cause slight injury to maples. Do not apply insecticidal soap to Japanese maple.
Management Hints: Treat when leafhoppers are first noticed and repeat as necessary according to label directions. (pp. 414, 416, 418)
Maple Callus Borer: Formulations of bifenthrin (Onyx Insecticide only) and chlorpyrifos (Dursban 50W only) are labeled for borer management.
Management Hints: This is a clearwing borer that can seriously injure hard and soft maples. Adults are active from late May through June. (p .260)
Maple Gall Mites (eriophyid): Formulations of carbaryl, horticultural oil, and tau-fluvalinate are labeled for eriophyid mite management.
Management Hints: Adults may be managed when they move from their overwintering site to new growth in the spring. These mites seldom cause significant damage. (p. 482)
Maple Leafcutter: Formulations of carbaryl and chlorpyrifos (Dursban 50W only) are labeled for maple leafcutter management.
Management Hints: The favorite host plants for this insect are sugar and red maples. A symptom of attack by this pest is circular holes in the foliage that may be observed in late July. This insect is usually unimportant, but sometimes populations may be severe in limited areas. When indicated, treat the infested foliage in late May through early June when larvae are just hatching. (p. 212)
Maple Petiole Borer: No specific materials are labeled for management of this pest.
Management Hints: This insect is a sawfly that infests maples. Larvae tunnel in leaf petioles from May through June. This insect seldom causes serious damage to host trees. (p. 200)
Oystershell Scale: Formulations of acephate, acetamiprid, azadirachtin (Ornazin 3% EC only), buprofezin, carbaryl, chlorpyrifos (Dursban 50W only), cyfluthrin, cyfluthrin and imidacloprid, deltamethrin, dinotefuran, horticultural oil, hydrophobic extract of neem oil, insecticidal soap, lambda-cyhalothrin (Battle GC, Demand CS, Scimitar CS, Scimitar GC, and Scimitar WP only), malathion, and methidathion are labeled for crawler management.
Management Hints: Select and apply horticultural spray oil according to label directions. Crawler sprays should be applied from late May through early June. Repeat applications may be needed. Do not apply insecticidal soap to Japanese maple. Malathion may cause slight injury to maples. Prune and destroy heavily infested twigs and branches. (p. 370)
Pear Thrips (exposed): Formulations of abamectin, acetamiprid, azadirachtin, Beauveria bassiana, bifenthrin (Bifenthrin Pro Multi-Insecticide, Onyx Insecticide, Talstar F, Talstar Lawn & Tree Flowable, Talstar GC Flowable, Talstar Nursery Flowable, and TalstarOne Multi-Insecticide only), carbaryl, chlorpyrifos (Dursban 50W only), cyfluthrin, cyfluthrin and imidacloprid, disulfoton, dinotefuran, fenpropathrin, imidacloprid, insecticidal soap, lambda-cyhalothrin (Battle GC, Demand CS, Scimitar CS, Scimitar GC, and Scimitar WP only), malathion, naled, novaluron, pyrethrins and piperonyl butoxide, spinosad, and tau-fluvalinate are labeled to manage thrips. Marathon 1% G and Marathon 60 WP are labeled for use only on plants grown in containers, flats, benches, or beds.
Management Hints: This pest is more vulnerable to management when it is exposed on the lower leaf surface. This usually occurs during mid- to late May. Do not apply insecticidal soap to Japanese maple. Malathion may cause slight injury to maples. (p. 432)
Whitemarked Tussock Moth: Formulations of azadirachtin, bifenthrin (Bifenthrin Pro Multi-Insecticide, Onyx Insecticide, Talstar F, Talstar Lawn & Tree Flowable, Talstar GC Flowable, Talstar Nursery Flowable, and TalstarOne Multi-Insecticide only), carbaryl, chlorpyrifos (Dursban 50W only), cryolite, cyfluthrin, cyfluthrin and imidacloprid, deltamethrin, diflubenzuron, lambda-cyhalothrin, naled, permethrin (Astro Insecticide and Permethrin Pro only), pyrethrins and piperonyl butoxide, spinosad, and tau-fluvalinate are labeled for management of this pest.
Management Hints: This insect may produce two to three generations each year. Treat foliage when larvae are first seen in late May. Repeat applications when necessary. (p. 158)
Yellownecked Caterpillar: Formulations of azadirachtin, bifenthrin (Bifenthrin Pro Multi-Insecticide, Onyx Insecticide, Talstar F, Talstar Lawn & Tree Flowable, Talstar GC Flowable, Talstar Nursery Flowable, and TalstarOne Multi-Insecticide only), carbaryl, chlorpyrifos (Dursban 50W only), cryolite, cyfluthrin, cyfluthrin and imidacloprid, deltamethrin, lambdacyhalothrin (Battle GC, Demand CS, Scimitar CS, Scimitar GC, and Scimitar WP only), permethrin (Astro Insecticide and Permethrin Pro only), pyrethrins and piperonyl butoxide, spinosad, and tau-fluvalinate are labeled for management of this pest.
Management Hints: Applications may be made from July through mid-September when larvae are present and infestations are severe. Buds are usually set on host plants late in the growing season so that lowering population levels will be more aesthetic in nature than for plant health care reasons. Remove and destroy colonies of young larvae when observed on the foliage of trees. (p. 154)