marshmallow - Woody Weed Specialists

marshmallow - Woody Weed Specialists

MANAGEMENT STRATEGIES HOW TO TREAT MARSHMALLOW FOR BEST RESULTS Marshmallow is a strong competitor for nutrients in the soil, especially around crop...

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MANAGEMENT STRATEGIES HOW TO TREAT MARSHMALLOW

FOR BEST RESULTS

Marshmallow is a strong competitor for nutrients in the soil, especially around crops or pasture, and has been reported as a potential cause of stock death in some cases where there were extensive infestations. Marshmallow tends to grow around water troughs, animal yards and where animals shelter during the day.

For effective control of marshmallow, an integrated approach using a combination of physical and chemical control methods at the right times and growth stages will produce the best results.

TREATING SMALL PATCHES OR LIMITED INFESTATIONS Marshmallow can be physically removed in smaller patches, especially while the plant is young, as it has a shallow root system and dries out relatively quickly in warm weather.

MARSHMALLOW (Malva parviflora)

TREATMENT TIPS • Young marshmallow is more susceptible to physical control methods like cultivation or manually removing the plant. • More established infestations will require the use of chemical herbicide applications.

TREATING MORE EXTENSIVE INFESTATIONS Where there are well-established or extensive infestations, Starane™ Advanced at a mix rate of 300 mL per 100 L of water (3 mL per 1 L) or Hotshot™ at a mix rate of 700 mL per 100 L of water (7 mL per 1 L) can be used as a foliar spray with a knapsack or 12 volt sprayer. Ensure you spray the entire leaf area of the plant, with thorough coverage of the crown (where the stems meet) all the way to the tips. For best results, ensure you treat when marshmallow is actively growing. This will ensure maximum uptake of the chemical into the root system.

TREATING USING MECHANICAL CONTROL Cultivation, the process of turning over the soil to expose the plants root system, is an effective control method for small to medium sized infestations. This process is less economic for larger or more well established infestations.

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MARSHMALLOW

(Malva parviflora)

DESCRIPTION Marshmallow is a semi upright weed that becomes more erect as it matures. It is characterised by rounded, wrinkled leaves with prominent veins, each consisting of 5 – 7 toothed sections. The plant stems are covered in stiff hairs, and produce pale pink or white flowers with 5 petals each, growing in small clusters in leaf forks or on the stalks.

in a drum HERBICIDES FOR THE CONTROL OF MARSHMALLOW PRODUCT

APPLICATION

RATE †

STATE

Starane™ Advanced

Foliar Spray

300 mL/100 L of water

All

Hotshot™

Foliar Spray

700 mL/100 L of water

All

NOTE: Preferred product option in bold. † Consult label for details of growth stage and use, especially where range of rates is given.

TIMING PRODUCT Starane Advanced Hotshot KEY:

Sep

4 4

4 Best time to spray/treat

Oct

Nov

· · · ·

Dec

Jan

Feb

8 8

8 8

8 8

·Can spray/treat if conditions are suitable

Mar

Apr

May

Jun

Jul

Aug

· · · · · ·

4 4

4 4

4 4

8 Do not spray/treat

For more information call toll free 1800 700 096 or visit www.woodyweedspecialists.com.au Dow AgroSciences Australia Limited ABN 24 003 771 659 20 Rodborough Road, Frenchs Forest NSW 2086 www.dowagrosciences.com.au ® ™ Trademark of The Dow Chemical Company (“Dow”) or an affiliated company of Dow