Psidium guajava
Common guava
Introduced and now reproducing on its own in the wild.
Psidium guajava, the common guava, yellow guava, or lemon guava (known as goiaba in Portuguese and guayaba in Spanish) is an evergreen shrub or small tree native to the Caribbean, Central America and South America. It is easily pollinated by insects; in culture, mainly by the common honey bee, Apis mellifera.
Read more on Wikipedia →This is an inference, not a schedule. The curve reflects when observers annotated flowering and fruiting — which tracks observer effort as well as plant behavior, and pools all elevations and islands into one signal. Hawaiʻi’s microclimates vary enormously; a species may fruit in January at sea level and June at elevation. Use this to know when to look, then look.
Controlling Psidium guajava
Best reported: IPA-Incision Point Application with 100% Polaris — one report from CTAHR/OANRP.
4.0IPA-Incision Point Application100% PolarisImazapyrG2
- 4more than moderate satisfaction · CTAHR/OANRP · trial · 2018-04-24
Trial complete, 30 months. 2 cuts/tree, 0.5ml/cut. At 10 months, 1 of 5 trees dead, all fully defoliated. At 19 months, 2 of 5 dead. At 30 months, 3 of 5 dead (circum < 51cm), 2 remaining had resprouts. recovering. Suggest 1 cut/10-15cm.
4.0cut-stump20% G4, 80% BiodieselTriclopyrG4
- 4more than moderate satisfaction · OANRP · observed
4.0girdle20% G4, 80% BiodieselTriclopyrG4
- 4more than moderate satisfaction · OANRP · observed
3.0IPA-Incision Point Application100% MilestoneAminopyralidG4
- 3moderate satisfaction · CTAHR/OANRP · trial · 2018-04-23
Trial complete, 30 months. 2 cuts/tree, 0.5ml/cut. At 19 months, 5 of 5 trees major defoliation, poor health. At 30 months, 2 of 5 recovering, none dead.
3.0IPA-Incision Point Application100% Ranger ProGlyphosateG9
- 3moderate satisfaction · CTAHR/OANRP · trial · 2018-04-23
Trial complete, 30 months. 2 cuts/tree, 0.5ml/cut. At 19 months, 1 of 5 trees dead. At 30 months, 2 of 5 dead, 2 recovering. Inconsistent results.
2.0IPA-Incision Point Application100% Garlon 4 UltraTriclopyrG4
- 2minimal satisfaction · CTAHR/OANRP · trial · 2018-04-23
Trial complete, 30 months. 2 cuts/tree, 0.5ml/cut. At 19 months, 1 of 5 trees dead (smallest, circum = 28cm). At 30 months, 4 of 5 recovered and healthy. Not recommended
Ratings are the reporting organisation’s own, on a 5-point scale. Always follow the product label — the label is the law. See these 6 rows in the full table
