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Add Yahoo as a preferred source to see more of our stories on Google. Many gardeners will tell you that aphids are the bane of their existence. According to a new study from the University of Florida, ...

Monarch butterfly populations have declined to critically low numbers over the past 20 years, and it appears to be related to the increased use of tropical milkweed in our gardens and public spaces.

All milkweed plants — tropical or native — are good for butterflies and other pollinators, right? For the most part, that’s true. However, there is much debate between policymakers and the scientific ...

Tropical milkweed was added to Florida's invasive species list in June 2025. This non-native plant hosts a parasite that harms monarch and queen butterflies. Florida has 21 native milkweed species ...

Some monarch butterfly researchers are questioning Marin County and other counties’ recent decision to ban tropical milkweed sales as a way to protect the state’s dwindling populations of the iconic ...

Elizabeth Blackstone of West End Nursery, left, chats with customer Ann Brenner of Ross while Brenner selects a pair of native milkweed plants at West End Nursery in San Rafael on Tuesday, Aug. 30, ...

Many gardeners will tell you that aphids are the bane of their existence. According to a new study from the University of Florida, these tiny pests also pose problems for the iconic monarch butterfly.

When oleander aphids infested tropical milkweed, monarch butterflies laid fewer eggs on the plant, and the caterpillars developing on those plants were slower to mature. Many gardeners will tell you ...