little black dots on bottom of leaves

[Chicken]

what is this,?

85% of my patch has this,,,and little flies,?

i didnt have this issue 2 weeks ago,,,,

is it harmfull?

i looked at R.J. REYNOLDS site on plants diseases,,,and couldnt find anything,,,,

if i rinse these leaves off, before hanging will they be fine,?

it wipes off when you rub it roughly,,,

i also have the little flies {white flies?] on the bottom of the leaves,,,

 

[dkh2]

It could be residue from the flies sucking the life out of the leaves.
Can you post a picture ?

 

[dkh2]

Does this look similar ?

 

[Chicken]

it looks exactlly like that...

heres a pic of one of my leaves,,

..

 

[Chicken]

i sprayed some oil based citrus disease killer on them 2 days ago,,, and still got the flies,,,, i guess it's going to be diazanon again,

 

[dkh2]

Man then you got Aphids big time
Hose the plants off with a water hose every day
and ask around about what to spray the plants with
because your gonna want to smoke those leaves some day.
and you spray some bad ass poison on them it might be bad for you

 

[Chicken]

By chickenhawk435 at 2011-09-13

 

[Chicken]

well what are the black dots?

thier poop.?

 

[FmGrowit]

Thems is phid shells, phid poop and live phids. Try to use something other than poison on the leaf this close to harvest time.

The second picture looks like it's just the spots left by phids after they cuck the juice out of the leaves.

 

[SmokesAhoy]

i've heard you get a bucket of soapy water and a sponge, then like twice a week give the leaves a sponge bath and wipe off flies.

sounds like a lot of work

 

[dkh2]

well what are the black dots? thier poop.?

It's referred to as " Honey Dew "
Do a Google search on " Aphid Damage to Tobacco leaves "
It will have more precise information

 

[Chicken]

im not going to use poision,,,, i'll rinse the leaves daily,, and each morning give them a good soapy spraying...

perhaps next year after all this learning ive done this year,,,,

i'll have the perfect crop...

so basically the black dots are harmless,, and the baccy can still be harvested,?>>

 

[Jitterbugdude]

The best way to get rid of them is to use your garden hose set to a strong stream of water. Physically wash them off with the stream of water, then spray the plant with some soapy water.

 

[Chicken]

thanks for the help....

last night and nightly, im gonna spray the leaves down,,,and each morning do a soapy water regime,,,

'' which im doing right now,,, had to take a break my fingers are tired from the sprayer nozzle,{ gotta get a new wand for my 2 gallon sprayer}

unfortunatlly i have the day off,,, the transmission in the dump-truck went out,,, and it's in the shop<-------

 

[BaccaChew]

Thems is phid shells, phid poop and live phids.

I did find a patch of aphids last month. There must have been 20 or 30 of them in a cluster about the size of a silver dollar. Rubbed them out with my finger and that is the last of them i have seen.

 

[marksctm]

I did a test run of seeds from this years seeds, and just let them grow in the window in the living room. I though there was dirt on the bottom leafs, but after I put on my glasses, there aphids, in side the house.
I had them out side, bad, on the tobacco, not my roses or any on veggies.
I had hover flies, lady bugs, and some other type bee/wasp feeding on them, but didn't phase them.



I know of soapy water and other things, but is there any method of pretreating for them next year?
Spray the ground, torch the ground. Do they fly, craw, drop from trees on to the tobacco?
Do ants bring them in to make them honeydew?
After such a warm winter last year, the pest were so bad, I hate to think of what they will be like next year if we have 2 mild winters in a row.
So I'm asking, is there any way to prevent them, rather than having to treat FOR them?
Or am I just going to have deal with them, and have them on my tobacco every year.
Please excuse my ignorance.

Thanks

 

[johnlee1933]

I did a test run of seeds from this years seeds, and just let them grow in the window in the living room. I though there was dirt on the bottom leafs, but after I put on my glasses, there aphids, in side the house.
I had them out side, bad, on the tobacco, not my roses or any on veggies.
I had hover flies, lady bugs, and some other type bee/wasp feeding on them, but didn't phase them.

View attachment 2072 View attachment 2073

I know of soapy water and other things, but is there any method of pretreating for them next year?
Spray the ground, torch the ground. Do they fly, craw, drop from trees on to the tobacco?
Do ants bring them in to make them honeydew?
After such a warm winter last year, the pest were so bad, I hate to think of what they will be like next year if we have 2 mild winters in a row.
So I'm asking, is there any way to prevent them, rather than having to treat FOR them?
Or am I just going to have deal with them, and have them on my tobacco every year.
Please excuse my ignorance.

Thanks

In a word, Yes. It is called a systemic. The compound is "imidacloprid". It is sold under a number of trade names including "Admire" It is diluted in water and add to seedling soil as the last watering before planting. The stuff becomes a part of the growing plant. When a sucking bug like an aphid sucks he dies. The stuff is vectored and is not supposed to affect other insects and is supposed to be harmless to other animals including humans. I've seen it is action in a "side by side" in my own patch where I grew treated and untreated plants side by side. The untreated plants were heavily attacked by aphids and the treated plants had NONE ! IT WORKS !

Sadly you need a license to buy it. In general the pesticide license is not to hard to study for and get but in CT it is expensive and has to be renewed every couple of years. all the fellows like Green Lawn and Green Thumb have to have them so it is just another cost of doing business.

John

 

[andrewislord]

Can you buy the imidacloprid on ebay? I've seen it on there, and assume it's the same, but never did the research. I've looked into using it before, but stopped because I'm a little scared of it.

 

[LeftyRighty]

Orthene or Acephate is also systemic - but not really 'safe' or organic - has a half-life of 10 to 14 days, so if it's going to months or years before you use it, it might be considered safe. Acephate is effective against aphids, hormworms, budworms, army worms. cutworms, hoppers, anything that takes a bite of your baccy. It's used commercially by most growers that have problems with bugs. Don't know if I'd use it indoors though. just FYI, if you have severe problems with bugs, may be worth considering.

 

[istanbulin]

If you have stone fruit (Prunus) trees in your garden (e.g. peach, plum, almond etc.) or if there are commercial fields of beet, tomato, patato and radish you may have Aphid (Myzus persicae) problem because these plants are highly hospitable for aphids Especially if you don't want to use pesticides on your tobacco leaves, you should try to kill them while aphids are hibernating (actually they are in egg form). They use the stone fruits like a winter house, use chemicals on this trees in late winter or in early spring just before their hatch.
Also, do not leave plant pieces on your tobacco garden and get rid of the weeds. And try not to use composts contaminated with aphids because they may have some eggs.