Petunia and verbena pest
- arnorrian
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- Joined: Tue Dec 10, 2019 10:37 pm
- Location: Moesia Superior
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Petunia and verbena pest
I've noticed that the leaves of some of my petunias and verbenas have tiny shining patches. I've also seen sub-millimeter yellowish worm on the verbenas. In petunias it just some of the inner leaves, but on the affected verbenas it's all over, and they've stop flowering.
![Image](https://i.imgur.com/LNGBp5c.jpeg)
Does anybody know what this pest is?
![Image](https://i.imgur.com/LNGBp5c.jpeg)
Does anybody know what this pest is?
Climate: Cfa
USDA hardiness zone: 7a
Elevation: 140 m
USDA hardiness zone: 7a
Elevation: 140 m
- MissS
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- Joined: Fri Dec 13, 2019 4:55 am
- Location: SE Wisconsin Zone 5b
Re: Petunia and verbena pest
I have no idea of what your pest is but it sounds as if your plants are distressed and need some help. I would try using DE or neem oil first perhaps even just a soap spray. I always try to use a passive approach first before I would bring out a chemical treatment.
~ Patti ~
- arnorrian
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- Posts: 737
- Joined: Tue Dec 10, 2019 10:37 pm
- Location: Moesia Superior
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Re: Petunia and verbena pest
I've dug the internet deeper and found it was thrips. The yellow worms I saw was their nymphs. Luckily I have excellent eyesight when it comes to small things. I removed all the flowers to one spot, sprayed with abamectin, and covered it with frost cloth so the bees can't land on them until the abamectin degrades.
![Image](https://beetlesinthebush.files.wordpress.com/2011/03/img_5624_900x600.jpg)
![Image](https://beetlesinthebush.files.wordpress.com/2011/03/img_5624_900x600.jpg)
Climate: Cfa
USDA hardiness zone: 7a
Elevation: 140 m
USDA hardiness zone: 7a
Elevation: 140 m