Growli

Pest identification

What's eating my tiger lily?

Scarlet lily beetle (Lilioceris lilii)

Signs: Adults and slug-like larvae chew leaves, stems, and buds, often defoliating plants completely; larvae coat themselves in black frass

Control: Hand-pick adults and larvae daily (hold a container below — beetles drop when disturbed); neem oil or pyrethrin spray for heavy infestations; encourage parasitoid wasps

Lily aphids (Macrosiphum lilii)

Signs: Colonies on undersides of leaves transmit mosaic and mottle viruses, causing yellow streaking, mottled foliage, and weakened growth

Control: Blast off with a strong water jet; apply insecticidal soap or neem oil; remove and destroy virus-affected plants promptly to break the cycle

Deer

Signs: Snap or browse stems and flower buds overnight, often leaving ragged stubs; whole shoots may disappear

Control: Deer-repellent sprays (reapply after rain); physical barrier netting around the bed; interplant with deer-deterrent alliums

Vine weevil (Otiorhynchus sulcatus)

Signs: C-shaped white larvae eat roots and bulbs underground, causing sudden wilting and plant collapse

Control: Apply nematodes (Heterorhabditis bacteriophora) to moist soil in late summer; inspect bulbs at lifting and discard any grubs

Keep tiger lily pest-free

Healthy plants resist pests best. Get the basics right:

Tiger Lily pests — FAQ

What is eating my tiger lily?

Tiger lilies (Lilium tigrinum) are heavily targeted by the scarlet lily beetle and its larvae, which can strip plants bare. Aphids transmit mosaic viruses that mottle and distort foliage. Deer and squirrels also raid the showy blooms and bulbs. Inspect regularly from spring and act fast — larvae cause the worst damage.

How do I get rid of scarlet lily beetle (lilioceris lilii) on tiger lily?

Adults and slug-like larvae chew leaves, stems, and buds, often defoliating plants completely; larvae coat themselves in black frass Hand-pick adults and larvae daily (hold a container below — beetles drop when disturbed); neem oil or pyrethrin spray for heavy infestations; encourage parasitoid wasps

How do I get rid of lily aphids (macrosiphum lilii) on tiger lily?

Colonies on undersides of leaves transmit mosaic and mottle viruses, causing yellow streaking, mottled foliage, and weakened growth Blast off with a strong water jet; apply insecticidal soap or neem oil; remove and destroy virus-affected plants promptly to break the cycle

How do I get rid of deer on tiger lily?

Snap or browse stems and flower buds overnight, often leaving ragged stubs; whole shoots may disappear Deer-repellent sprays (reapply after rain); physical barrier netting around the bed; interplant with deer-deterrent alliums

How do I get rid of vine weevil (otiorhynchus sulcatus) on tiger lily?

C-shaped white larvae eat roots and bulbs underground, causing sudden wilting and plant collapse Apply nematodes (Heterorhabditis bacteriophora) to moist soil in late summer; inspect bulbs at lifting and discard any grubs