Can A 600w Burn Pistils Over 16'' Away?

[Smootherpete]

It's a new Hortilux Eye 600w bulb and I've never had this problem before with my cheaper bulb. I don't see the leaves curling up like when they get heat stress but some of the buds directly underneath the light have had their pistils turn brown and dry up. I didn't turn the light off but I can see the brown pistils in this picture. They are just starting to flower and I know these clones well, pistils don't turn brown until the end.

 

[vostok]

No ....but how humid is your grow space...?

..and yes the plant can tell the difference between bulbs ..light..and people.
just as smart as your cat, dog or girl

 

[thenotsoesoteric]

Looks like it got pollinated to me. Maybe check around for some male flowers.

 

[makka]

Doubt it at that height maybe fan blowing them dried them up?

 

[makka]

Doubt it maybe fan blowing on them?

 

[Iloveskywalkerog]

I heard it's not usual but it happened to me the first and only time I tried to grow.

 

[Capt. Trips]

I know it can happen because it just happened to me. I have a 600w HPS in an Adjust-A-Wing reflector and I find that it has a weird light spread, but the thing I find really weird is that it's way hotter on the outside edges of the reflector than it is directly underneath the bulb. So the buds that are closest to the bulb are just fine, but the ones furthest away got crispy and burnt. I thought that was pretty strange.

 

[Smootherpete]

Doubt it maybe fan blowing on them?

You might be right, combination of fan wind and hot light on top with low RH. I didn't have a fan blowing on the tops before. I put an oscillating wall mount fan to blow air on the tops to resolve heat stress issues.

 

[Cobnobuler]

Is your light bulb one of those open wing type things ? Or is it at least glass covered ? Big difference sometimes in results.

 

[green_machine_two9er]

No ....but how humid is your grow space...?

..and yes the plant can tell the difference between bulbs ..light..and people.
just as smart as your cat, dog or girl

Haha sorry made me laugh cat dog or girl. I think my plants are smarting than all three out together.

 

[Smootherpete]

Is your light bulb one of those open wing type things ? Or is it at least glass covered ? Big difference sometimes in results.

It's a sealed hood with tempered glass. I now have the glass (not the bulb) 18'' from the tops.