Kava disease please help

[Lukie]

So I have had this disease on and off. I did spray with a fungicide and it seemed to clear up a little. I just transplanted and now it's back quick bad and many leaves and black or with black spots. I have insects under control and I sprayed again but it doesn't seem to help much.

Anyone know what to spray or what to do? I am using neem and a 3 in 1 bacterial, fungicide and insecticide at the moment safe for food.

 

[kasa_balavu]

It doesn't look like fungal or pest damage to me. Maybe burning from overfertilizing or just transplant shock.

 

[Lukie]

It doesn't look like fungal or pest damage to me. Maybe burning from overfertilizing or just transplant shock.

I think I will just leave it then. It has tons of organic fertilizer in there. Do they actually need much? The ferts I used are 20 kg marine animal phosphate 0-20-0 with minerals and a organic compost analysis 3-3-4 also 20 kg mixed with river sand, perlite and hardwood wood chips for a 200 gallon pot. Its about 1/2 rich river loam soil the other half the amendments.

 

[Alia]

So I have had this disease on and off. I did spray with a fungicide and it seemed to clear up a little. I just transplanted and now it's back quick bad and many leaves and black or with black spots. I have insects under control and I sprayed again but it doesn't seem to help much.

Anyone know what to spray or what to do? I am using neem and a 3 in 1 bacterial, fungicide and insecticide at the moment safe for food. View attachment 12226

Have you examined the underside of the leaves? The turning down of the upper portion makes me think there may be a tiny sucking critter underneath.
When my plants get mites or thrips the same blotching and burning appears .

 

[Groggy]

Have you examined the underside of the leaves? The turning down of the upper portion makes me think there may be a tiny sucking critter underneath.
When my plants get mites or thrips the same blotching and burning appears .

Is that a common problem for you guys in the Pacific growing regions? With temperatures being milder, I would think there would be more insects.

 

[Alia]

Is that a common problem for you guys in the Pacific growing regions? With temperatures being milder, I would think there would be more insects.

Here the most common pests on 'awa are-- red spider mites, thrips, and aphids. All stay under the leaves. By the way the most published 'awa research pathologist- Dr. Scot Nelson recently passed away. He was like only late 50's, very sad. He did the pests and disease section of the Hawaiian 'awa book and much,much more. Sad loss.
You can google Scot Nelson plant pathologist and see many of his contributuions. This link below may also work.

Mānoa: Plant pathologist creates new plant disease assessment app | University of Hawaii News

www.hawaii.edu

 

[The Kap'n]

Here the most common pests on 'awa are-- red spider mites, thrips, and aphids. All stay under the leaves. By the way the most published 'awa research pathologist- Dr. Scot Nelson recently passed away. He was like only late 50's, very sad. He did the pests and disease section of the Hawaiian 'awa book and much,much more. Sad loss.
You can google Scot Nelson plant pathologist and see many of his contributuions. This link below may also work.

Mānoa: Plant pathologist creates new plant disease assessment app | University of Hawaii News

www.hawaii.edu

Tonight's shells are in honor of his memory.


Klaus Dragull Jim Henderson Mel C. Jackson Ed Johnston Jerry Konanui G. David Lin Kepā Maly Scot Nelson Jeri Ooka Tom Osborn Helen Rogers Chung-Shih Tang. 2006. Hawaiian ‘Awa Views of an Ethnobotanical Treasure. Edited by Ed Johnston and Helen Rogers. Association for Hawaiian ‘Awa.
http://www.awadevelopment.org/wp-content/uploads/2014/01/awabook-web-part-1-of-2.pdf

http://www.awadevelopment.org/wp-content/uploads/2014/01/awabook-web-part-2-of-2.pdf

 

[Lukie]

Yes I had aphids and spider mites but I have been regularly spraying with neem oil every few days and every week with something stronger that is systemic although I have stopped that now as told its not approved.. - I hear diazon is used however, malation is what I use on my cacao - If what I spray doesn't kill everything and they keep coming back every so many days I don't know what to do. I also moved it away from the veg garden and into the seedling nursery which should have less pests.

 

[Kalm with Kava]

Yes I had aphids and spider mites but I have been regularly spraying with neem oil every few days and every week with something stronger that is systemic although I have stopped that now as told its not approved.. - I hear diazon is used however, malation is what I use on my cacao - If what I spray doesn't kill everything and they keep coming back every so many days I don't know what to do. I also moved it away from the veg garden and into the seedling nursery which should have less pests.

I found that the neem oil I'm using on my 'awa was burning the leaves. I found two things to help:
A) Only spray neem on at night, because the sunlight mixed with neem caused burning
B) Dilute the neem more than it says

My red spider mites are gone, but my leaves are still recovering from the neem. My plant is indoors though, so I don't have as big of an issue with the bugs. Good luck!

 

[Lukie]

So after the scare I am now beginning to understand the plant. Insects just love it! Anyway I have found as long as kava doesn't rot which it loves to do then it's will bounce back. A good tropical thunderstorm brought a lot of rain and now it's back to normalish.

 

[RUSTYHOLO]

Aloha, I was wondering if anyone might have some ideas about this, if it is some sort of nutrient deficiency or of its a desease