What Is It? | Facts in Depth | For the Professional Diagnostician
Descriptions of Plant Viruses Website provides extensive information about viruses, viroids, and more including descriptions, taxonomic notes, and sequence analyses.
- Yellow or brown spots or streaks on the foliage, leaf petioles and stems.
- Leaves develop a pale green color and become very distorted.
- Stems can develop purplish-brown streaking.
- Newer plant growth may be very stunted.
- Plants infected early in the season may produce few or now fruit.
- Green immature tomato fruit mottled, with faint concentric rings.
- Distinct red or yellowish-white rings on mature fruit.
- Blotches with sunken areas.
- Necrotic ringspots form on tomato fruits with Tomato chlorotic spot virus.
Pictures of symptoms caused by Tomato chlorotic virus (left; center) and Tospovirus (right).
Favorable Environmental Condtions
Dry and warm conditions (approximately 75ºF) are favorable for thrips reproduction.
Often Confused With
- Fusarium wilt
- Verticillium wilt
- Pepino mosaic virus
- Look for signs of thrips damage on the plants or keep sticky traps around the high tunnel to catch thrips.
- Remove any plants exhibiting viral symptoms.