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Broadleaves

Siam weed

Rambling shrub up to 2 m with arrow shaped, three veined leaves in pairs that smell strong when crushed, and pale mauve to white flower tufts.

Chromolaena odorata Broadleaves, perennial Fact sheet
Siam weed (Chromolaena odorata) in flower, with clusters of pale flower heads
Photo: Francisco Farriols Sarabia, CC BY, via iNaturalist

Also called

Hagonoy, agonoy, gonoy

Crops it troubles

Niyog Coconut Mangga Mango Kasoy Cashew Kape Coffee Kakaw Cacao Palma Oil palm Goma Rubber Saging Banana Abaka Abaca Pinya Pineapple Tubo Sugarcane Langka Jackfruit Sampalok Tamarind Kamoteng kahoy Cassava Kamote Sweet potato Gabi Taro Ubi Purple yam Patatas Potato Luya Ginger Luyang dilaw Turmeric Kawayan Bamboo Papaya Kalamansi Calamansi Citrus, dalandan or ponkan Suha Pomelo Abukado Avocado Bayabas Guava Lansones Lanzones Rambutan Duryan Durian Mangostan Mangosteen Sapodilla Chico Atis Sugar apple Guyabano Soursop Santol Kaimito Star apple Saniata Dragon fruit Malunggay Moringa

How to tell it is a broadleaf

Wide leaves with a net of veins. The group decides what kills it, so check the stem and the leaf before you buy a herbicide.

How to keep it out

Slash it before it flowers and dig out the crowns; a legume cover crop or quick shade keeps it from coming back.

How to control it

What to do and which active ingredients work depend on your crop and how old it is. The weed control helper in anee.io gives both, for coconut and every other crop it grows in.

Open the weed control helper

Where this comes from

Not sure it is this one?

Many weeds look alike. Send a photo to Anee, the smart farm technician in anee.io. She reads it with your crop, its age and the weather, and tells you what it most likely is and what to do first. In Tagalog or English.

Meet Anee