Why do my indoor tomato plants have leaf curl?

i have indoor vine type plants on my window sill.with grow light up above.plants were really fine for past 2 months.nice vines,great leafs.no blossoms yet though.but today i noticed leafs curling really bad.color is good.leaf looks fine ,just curling.they get plenty of water,and house is about 68 all the time.they are in a south facing bay window.they are about 2 foot tall.or so.long branches.i also noticed that one of the leafs has a little bit of chewing on it,which i had not seen before.plants were started inside,from seed.any ideas?

Why do my indoor tomato plants have leaf curl?
Hello to You,

This is what I found for you:

Plants Affected: Tomato



Description: When tomato plants grow vigorously in mild, spring weather the top growth often exceeds the root development. When the first few days of warm, dry summer weather hit, the plant 'realizes' that it has a problem and needs to increase its root development. The plant attempts to reduce its leaf area by rolling leaves. The leaves curl along the length of the leaf (leaflet) in an upward fashion. It is often accompanied by a thickening of the leaf giving it a leathery texture. Interestingly, leaf roll is worse on some varieties than others. Though rolling usually occurs during the spring to summer shift period, it may also occur after a heavy cultivating or hoeing, a hard rain, or any sudden change in weather. Too much rain can saturate the soil and suffocate the roots. A root system lacking in oxygen cannot move water to the upper parts of the plant resulting in the same symptoms that occur with too little soil moisture or a limited root system.



Recommendations: Avoid deep hoeing close to plants, mulch to keep the soil cooler and to moderate moisture extremes and do a good job of watering by keeping the soil moist but not waterlogged. This leaf roll is a temporary condition that goes away after a week or so when the plant has a chance to acclimate, recover from injury, or the soil has a chance to dry out.



References:



1. Physiological Leaf Curl in Tomatoes, K-State Research and Extension, Horticulture 2005 Newsletter, No. 26, June 29, 2005



Hope this helps,

Dave



PS...........Here, too!

http://forums.gardenweb.com/forums/tompe...



http://forums.gardenweb.com/forums/tomat...
Reply:maybe too much water.
Reply:I could just be the stage the plant is in ir it could be a disease causes from a particular bug. You can get pyrentherin spray just in case and spray the plant. Its all natural with no pesticides so wont harm the plant or fruit.
Reply:Sometimes tomato leaves roll upward and get kinda leathery when the weather is cool and rainy. This would be seen mostly on the lower leaves and doesn't effect the growth of fruit. If this is what you have then I would try raising the temperature a bit (just add another light) and be sure you are not over watering. If it really bothers you then prune them off but since they are still green they are still photosynthesizing, and hence acting as sources for your eventual flowers/fruit (sinks).



It does seem that after 2 months and 2 feet of growth I would be wondering why there aren't any flowers yet (the extra light might help this, too).



There is also a virus tomatoes can get called 'Tomato Leaf Curl Virus' but it is transmitted by white flies that, hopefully, you don't have in your house. Infected leaves will curl downward.



Good luck, it sounds like you have some beautiful plants!
Reply:What does a little bit of chewing tell you ?

Get a house plant bug spray.

The chewing critters are very, very small.

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