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Active ingredientGroup 4Pyridine carboxylic acid
Aminopyralid
Synthetic auxin
Persists in plant material, manure, and compost. Do not move treated biomass off site.
29 species
Species it’s been reported on
- Psidium cattleianumwaiawī7 rows · best 5.0/5
- Araucaria columnarisCook pine3 rows · best 5.0/5
- Grevillea robustasilk oak2 rows · best 5.0/5
- Leucaena leucocephalakoa haole2 rows · best 5.0/5
- Melaleuca quinquenerviaBroad-leaved paperbark2 rows · best 5.0/5
- Rubus argutusSawtooth Blackberry2 rows · best 5.0/5
- Cryptomeria japonicasugi1 row · best 5.0/5
- Delairea odorataCape-ivy1 row · best 5.0/5
- Morella fayafiretree1 row · best 5.0/5
- Schinus terebinthifoliusChristmas berry1 row · best 5.0/5
- Syzygium cuminiJava plum4 rows · best 4.0/5
- Acacia mearnsiiblack wattle1 row · best 4.0/5
- Callitris columellarisCoastal Cypress Pine1 row · best 4.0/5
- Leptospermum polygalifoliumTantoon1 row · best 4.0/5
- Pimenta dioicaAllspice1 row · best 4.0/5
- Chrysophyllum oliviformeSatinleaf1 row · best 3.0/5
- Psidium guajavaCommon guava1 row · best 3.0/5
- Senecio madagascariensisMadagascar Ragwort1 row · best 3.0/5
- Spathodea campanulataAfrican tulip tree2 rows · best 2.0/5
- Acacia confusaTaiwan Acacia1 row · best 2.0/5
- Angiopteris evectaking fern1 row · best 2.0/5
- Casuarina glaucaSwamp sheoak1 row · best 2.0/5
- Leptospermum scopariumMānuka1 row · best 2.0/5
- Toona ciliataAustralian Red Cedar1 row · best 2.0/5
and 5 more in the data.
In the data
Weed Control by Species
| Genus | Species | Family | Common Name(s) | Organization | Control Technique | Cocktail | Satisfaction Rating | Additional treatment notes | Size class (in regards to species) | Habitat Type | Environmental factors | Trial or Observation? | Last Updated |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Acacia | mearnsii | Fabaceae | black wattle | KMWP | IPA-Incision Point Application | 100% Milestone | 4-more than moderate satisfaction | MESIC | TRIAL | 2020-03-10 | |||
| Acacia | confusa | Fabaceae | Formosan koa | CTAHR/OANRP | IPA-Incision Point Application | 100% Milestone | 2-minimal satisfaction | Trial complete, 30 months. 4 cuts/tree, 0.5ml/cut. At 11 months, 3 of 4 trees fully defoliated. At 30 months, no trees dead, and largest recovering (circum = 82cm). Higher doses may be effective. | trunk circumference 38-94.5cm | MESIC | TRIAL | 2018-04-23 | |
| Aleurites | moluccana | Euphorbiaceae | Euphorbiaceae | CTAHR/OANRP | IPA-Incision Point Application | 100% Milestone | 4-more than moderate satisfaction | Trial complete, 30 months. 4 cuts/tree, 0.5ml/cut. At 6 months, major defoliation. At 10 months, 1 of 5 trees dead (circum = 70cm). At 30 months, 4 of 5 trees dead. Suggest 1 cut/15-20cm. | trunk circumference 61-104cm | MESIC | TRIAL | 2018-04-23 | |
| Aleurites | moluccana | Euphorbiaceae | Kukui | NEPM | girdle | 25% G4, 1%milestone, 74% MSO | 3-moderate satisfaction | mostly defoliated, still waiting to see if trees completely die | large trees | MESIC | OBSERVED | 2018-10-17 | |
| Angiopteris | evecta | Marattiaceae | Mule's foot fern | KMWP | IPA-Incision Point Application | 100% Milestone | 2-minimal satisfaction | does not completely kill plant. Major deformities | large | WET | TRIAL | 2015-02-23 | |
| Araucaria | columnaris | Araucariaceae | Cook pine | CTAHR/OANRP | IPA-Incision Point Application | 100% Milestone | 3-moderate satisfaction | Trial complete, 31 months. 4 cuts/tree, 0.5ml/cut. At 21 months, 1 of 5 trees dead (circum <61cm), remaining 4 fully defoliated. At 31 months, 2 of 5 trees dead, remaining 3 with resprouts. Higher doses may be effective. Suggest 1 cut/15-20cm trunk. | trunk circumference 47-207cm | MESIC | TRIAL | 2018-04-23 | |
| Araucaria | columnaris | Araucariaceae | Cook pine | CTAHR/OANRP/ NEPM | IPA-Incision Point Application | 100% AMP | 5-successful. Recommended method | double notch 4 points, .5ml/notch = 4ml effective on size classes up to 32cm circumference, may need to up the dose for larger trees- OFF LABEL USE RATE | MESIC | 2015-03-20 | |||
| Araucaria | columnaris | Araucariaceae | Cook pine | NEPM | IPA-Incision Point Application | Milestone 100% | 4-more than moderate satisfaction | unsuccessful for Xlarge trees | small approx < 6 in DBH | OBSERVED | |||
| Ardisia | elliptica | Myrsinaceae | Inkberry | CTAHR/OANRP | IPA-Incision Point Application | 100% Milestone (aminopyralid) | 1-unsatisfactory results | Trial complete, 26 months. 1 cut/tree, 0.5ml/cut. At 15 months, 1 of 5 trees dead. At 26 months, rest of plants recovering. May be effective at higher rates. Not recommended. | trunk circumference 15-19cm | MESIC | TRIAL | 2018-04-23 | |
| Callitris | columellaris | Cupressaceae | Murray river cypress-pine | CTAHR/OANRP | IPA-Incision Point Application | 100% Milestone (aminopyralid) | 4-more than moderate satisfaction | Trial complete, 27 months. 5cuts/tree, 0.5mL/cut. At 27 months, 3 of 5 trees dead, (circum < 75cm). Suggest 1 cut/10-15cm circum. | trunk circumference 56-113cm | MESIC | TRIAL | 2018-04-23 | |
| Casuarina | glauca | Casuarinaceae | iron wood | CTAHR/OANRP | IPA-Incision Point Application | 100% Milestone (aminopyralid) | 2-minimal satisfaction | Trial complete, 27 months. 5 cuts/tree, 0.5ml/cut. At 6 months, major defoliation on all trees. At 14 months, 2 of 5 trees dead (circum <55cm). At 27 months, live trees recovering. May be effective at higher rates | trunk circumference 51-95cm | MESIC | TRIAL | 2018-04-23 | |
| Chrysophyllum | oliviforme | Sapotaceae | Satinleaf | CTAHR/OANRP/ Waimea | IPA-Incision Point Application | 100% Milestone | 3-moderate satisfaction | TRIAL INCOMPLETE. Difficult to see canopy of test trees. Abandoned trial after 6 months. No trees died within that time. 2 cuts/tree, 0.5ml/cut. Major defoliation seen on trees 48cm circum or less. | Trunk circumference 32-71cm | MESIC | TRIAL | 2018-04-23 | |
| Citharexylum | caudatum | Verbenaceae | fiddlewood | CTAHR/OANRP | IPA-Incision Point Application | 100% Milestone (aminopyralid) | 1-unsatisfactory results | Trial 1 complete, 11 months. 2 cuts/tree, 0.5ml/cut. At 11 months, no trees died. May be effective at higher rates. | trunk circumference 32-75cm | MESIC | TRIAL | 2018-04-24 | |
| Citharexylum | caudatum | Verbenaceae | fiddlewood | CTAHR/OANRP | IPA-Incision Point Application | 100% Milestone (aminopyralid) | 1-unsatisfactory results | Trial 2 complete, 25 months. 4 cuts/tree, 0.5ml/cut. At 6 months, 1 of 5 trees with major defoliation. At 25 months, 1 of 5 in poor health (circum = 32cm), 4 of 5 moderate/healthy. Not recommended. | trunk circumference 25-47cm | MESIC | TRIAL | 2018-04-24 | |
| Coffea | arabica | Rubiaceae | common coffee | CTAHR/OANRP | IPA-Incision Point Application | 100% Milestone (aminopyralid) | 1-unsatisfactory results | Trial complete, 31 months. 1 cut/tree, 0.5ml/cut. At 21 months, major defoliation on all trees. At 31 months, no deaths, and trees recovering. Not recommended. | trunk circumference 17-34cm | MESIC | TRIAL | 2018-04-23 | |
| Cordia | alliodora | Boraginaceae | manjack | CTAHR/OANRP/ Waimea | IPA-Incision Point Application | 100% Milestone (aminopyralid) | 2-minimal satisfaction | Trial complete, 22 months. 6 cuts/tree, 0.5ml/cut. At 22 months, major defoliation on all trees, but none dead. Trial needs to be repeated. | trunk circumference 58-169cm | MESIC | TRIAL | 2018-04-23 | |
| Corymbia | citriodora | Myrtaceae | lemon eucalyptus | CTAHR/OANRP | IPA-Incision Point Application | 100% Milestone (aminopyralid) | 1-unsatisfactory results | Trial complete, 11 months. 4 cuts/tree, 0.5ml/cut. No trees died, all healthy. New trial needed. Not effective. | trunk circumference 70-158.5cm | MESIC | TRIAL | 2018-04-20 | |
| Cryptomeria | japonica | Cupressaceae | tsugi pine | CTAHR/OANRP | IPA-Incision Point Application | 100% Milestone (aminopyralid) | 5-successful. Recommended method | Trial complete, 27 months. 8 cuts/tree, 0.5ml/cut. At 8 months, 2 of 5 trees dead (circum <134cm). At 13 months 3 of 5 dead. At 19 months 5 of 5 dead. Suggest 1 cut/15-20cm. | trunk circumference 101-169cm | MESIC | TRIAL | 2018-04-24 | |
| Delairea | odorata | Asteraceae | Cape ivy | OISC | foliar | 0.1% Milestone (5ml/gal), 99.4% Water, 0.5%Turf trax | 5-successful. Recommended method | Tested this cocktail for a few rounds of spot treatment (returned to spot treat 1-2x/year for a 2-3 years. simpler cocktail and required less herbicide to carry and just as effective as other foliar treatment. | 2016-11-28 | ||||
| Elaeocarpus | grandis | Elaeocarpaceae | Blue marble | CTAHR/OANRP | IPA-Incision Point Application | 100% Milestone (aminopyralid) | 1-unsatisfactory results | Trial complete, 26 months. 5 cuts/tree, 0.5ml/cut. At 6 months, 2 of 5 trees defoliated, poor health. At 26 months, same 2 trees still in poor health, but resprouting, and rest recovered. Not recommended. | trunk circumference 48-149cm | WET | TRIAL | 2018-04-23 | |
| Falcataria | moluccana | Fabaceae | Albizia | Harold L. Lyon Arboretum | drill | 20% Milestone/80% Water | 5-successful. Recommended method | Multiple holes (2-3) in each buttress root using a 5/16 drill bit. Roughly 0.24 cubic inches/0.13 fl. oz. of herbicide mix per hole. Complete defoliation was noticed after 7-9 days. When applied in the rain it took 10 days for some individuals. Limb/trunk failure occured roughly a year after treatment. Trees are quite brittle and the branch tips do not get hung up when felling in a dense stand. | Large to Very Large Trees, many over 100' tall. | WET | OBSERVED | 2021-11-23 | |
| Falcataria | moluccana | Fabaceae | Albizia | KMWP | IPA-Incision Point Application | 10% Milestone | 1-unsatisfactory results | Applied within label recommendations but saw no damage to trees | 2016-02-23 | ||||
| Falcataria | moluccana | Fabaceae | Albizia | KMWP | IPA-Incision Point Application | 100% Milestone | 5-successful. Recommended method | over applied compared to IPA recommendation but saw results within 3 months | large | 2015-02-23 | |||
| Fraxinus | uhdei | Oleaceae | Tropical ash | CTAHR/OANRP | IPA-Incision Point Application | 100% Milestone (aminopyralid) | 1-unsatisfactory results | Trial complete, 31 months. 4 cuts/tree, 0.5ml/cut. At 7 months, some defoliation, but all plants recovered by 31 months. Not recommended. | trunk circumference 52-109cm | MESIC | TRIAL | 2018-04-23 | |
| Grevillea | robusta | Proteaceae | Silk oak | CTAHR/OANRP | IPA-Incision Point Application | 100% Milestone | 5-successful. Recommended method | Milestone Trial tested 4 cuts/trunk with 0.5ml/cut versus 4 cuts/trunk with 1ml/cut; 12 trees total tested. At 3 months, 1ml trees (n = 6) were all alive, but 5 of 6 fully defoliated, and 1 of 6 with a bit of foliage left; 0.5ml trees (n=6) had 2 of 6 dead, and all fully defoliated. At 29 months, couldn't find all trees; of 1ml trees, found 4 of 6 and all dead; of 0.5ml trees found 5 of 6 and all dead. Milestone very effective on small GreRob. | basal diameter 6-21.5cm | MESIC | TRIAL | 2018-04-24 |
Registered products
Live from the EPA’s Pesticide Product and Label System — registration status changes, so this is fetched fresh, never stored.
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The label is the law
Results reported here are field experience, not recommendations. Always read and follow the product label, and check that a product is labelled for the site — especially near water.