Brug yellowing and leaves falling off

(Zone 6a)

What is the solution? It is in a large pot in full sun. Temps. have been running in high 80's to low 90's for several days here....brug looked just fine and had flowered. Is the hot weather the cause?? This is a Dr. Seuss variety. Does not seem to be too dry or too wet, nor is it underfed.

Owen

Deep South Coastal, TX(Zone 10a)

Usually is a sign of letting the plant wilt, sometimes it takes a week for the yellow leaves to show up. Could also be sunburn. Sometimes mine do that when I first take them outside in the spring.

Angleton, TX(Zone 9a)

Owen . . I think it is the hot weather. It is happening to mine that are in the ground and heavily mulched. We are having temps in the low 90's and most of the ones in full sun are being affected. I keep thinking that they will adjust to the heat and mainly the sun. Mine have been out since spring but I am not sure if they will ever become accumulated to it.

Chariton, IA(Zone 5b)

I heard something the other day. A guy who does Q&A for Earl May said that when the temperature and the dew point add up to 150 or more, do not fertilize anything as it will burn the leaves. I thought it was a bunch of bologna, but after fertilizing two patio tomatoes on a very hot day, about 90 and dew point at over 70, you should see those tomatoes. The leaves are definitely burned. Guess I better start listening to that guy for real.

Newnan, GA(Zone 8a)

wonder how osmocoate would figure into that?

Chariton, IA(Zone 5b)

I think he was talking about watering with fertilized water.
I have a bunch of Osmocote under my brugs and the heat hasn't caused a problem yet.

(Zone 6a)

Thanks for the replies:) This particular brug did not wilt at all....just started to get yellowing in the leaves, which then fell, and continue to fall, off. I moved it to the east side of my house yesterday, so will see if that helps it for the rest of the summer.

I have 12 different brugs on the east side, and they all are looking nice and green and healthy.....just none of them old enough to bloom yet. Am thinking full sun here is just too much, or borderline at least, for brugs.

Owen

Hampstead, NC(Zone 8a)

Have you tried adding Ironite?

North Vancouver, BC(Zone 8b)

Or Miracid?

Lee's Summit, MO(Zone 6a)

Plants grow much as your hair does. When you grow a new hair/hairs, one hair/hairs falls out. When a plant puts on a new leaf, most of the time, it will lose a leaf. You may not even notice it, but the roots can only support so many leaves, and to compensate for new growth, so it can continue to grow with the root system it has, it will lose leaves. As the root mass increases, the leaf drop number should decrease. It is normal if it is only a few leaves. If it is a major number of leaves, then something else is going on.

(Zone 6a)

Most to all of the leaves are affected. Yes, I used ironite and miracid.

Chariton, IA(Zone 5b)

Owen, have you looked under the leaves closely for mites? I had this happen to me with my first brug and nearly lost it. It did lose all its leaves up to the growth point and scared me to death. I didn't know mites could take a plant so quickly. If it feels gritty under the leaves, you probably do have mites on the plant. Just a thought.

Lee's Summit, MO(Zone 6a)

Can anyone tell me if it is ok to remove all the leaves if the brug hasn't "y"ed yet? I have some that are about 3' tall, haven't "y"ed yet, and have holes in all the leaves from lace wing bugs. What can I safely treat the plant with? I prefer to use Merit granules mixed into the soil. Thanks for any information.

Angleton, TX(Zone 9a)

Brugie . . . the information about temps and dew points probably has merit to it. That could be why my look burnt. I feed often but only in the evening but our temps are in the mid 90's during the day. I will start checking the dew point before feeding and see if there is an improvement in the brugs that seem to have burnt leaves.

North Vancouver, BC(Zone 8b)

Brugie - seems like everybody but me knows what the dew point is. People actually have dew when the temperature is that high? I only get dew when the temps cool down. So obviously I haven't a clue what you mean.

Cedar Key, FL(Zone 9a)

When the weather man tell the temperature,they also tell the dew point,which somehow tells at what temerature dew will form,I think,maybe......if you go walk outside at night,in the grass,the grass is wet with dew,isn't it?

Chariton, IA(Zone 5b)

All I know is that when the dew point reaches 60 degrees, we start to feel the humidity. When it gets into the 70's it is downright tropical feeling. I don't know how they figure it, but I do watch it because I need to know if I should water early or if I can wait and deal with the heat and humidity together.

Lee's Summit, MO(Zone 6a)

http://www.speedsite.com/~temps/Q-dew_point1.html

This site explains "dew point".

Chariton, IA(Zone 5b)

Well now, isn't that interesting. Did I miss it or did it tell how to figure dewpoint? Thanks Kay. I guess I'll just stick to watching the weather report. My brain just can't take all that in. Jim would read this kind of stuff all day and enjoy every minute of it, so will have to head him to this site.

North Vancouver, BC(Zone 8b)

Thanks Kay - it's clearer now. Our weather guys don't give the dew point on the news, maybe because our temps don't usually go that high. Or because I live on the coast we rarely feel humidity. I really only notice the dew in the fall for some reason.

Chariton, IA(Zone 5b)

Kay, back to your question about removing the leaves from your brug. You can remove some of the bottom ones, but leave enough that the plant can take in the sun. Once it Y's and has good growth on that Y, you can remove anything below the Ying point.

Bodrum, Turkey(Zone 10a)

Our weathermen dont tell us the dew point either

(Zone 6a)

I am going to assume the high temperatures are the cause of my brug leaves yellowing.....no mites are present. May be diseased too.

Thanks for the input everyone. I appreciate it.

Owen

Woodsville, NH(Zone 4a)

Owen, Don't know if this will help you or not but I find that the Brugs I have in the full sun turn yellow and drop some of their leaves especially when it is hot and especially the smaller plants. All the ones that I have in only morning sun and afternoon shade are much greener and hardly any have lost leaves due to yellowing.

(Zone 6a)

snowhermit......thanks for the info. I moved it to only morning and noonish sunshine, so will see if that eventually brings it out of it. Almost all the leaves have yellowed now and fallen off. I have two other brugs in full sun...one in ground and other in a pot....and they are doing just fine though; green and both are flowering like mad. My seedlings and a few others are nice and green and growing but not blooming yet....hoping for some blooms on a few of them before frost; they are all shaded from the hot afternoon sunshine.

Owen


Owen

Woodsville, NH(Zone 4a)

I also find that any with velvety leaves and doubles prefer not to be in full sun.

Chariton, IA(Zone 5b)

Boy, am I in trouble. Have more than one with the soft leaves out in full sun. I had my double white in full sun a couple of years ago and it bloomed like crazy. No leaf problems then. I wonder if there might be a difference with them being planted in the ground. Mine are looking okay so far. Even HG is liking the sun.

Owen, I hope your plant revives well for you. I'm sure that if you lose it, I might be able to replace it for you this fall. At least would have something similar.

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