rose problem

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chickoo34
Posts: 126
Joined: April 4th, 2012, 12:34 pm
Country: pakistan
City: karachi
Location: Delhi Mercantile Society

rose problem

Post by chickoo34 »

the tips of rose leaves are turning brown.... and in some new growth there a black coloured spots..... when i asked the nursery man he told tht it is a pest causing the black colour and gave me a pesticide..?? any ideas wht it could be??
aykhan
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Re: rose problem

Post by aykhan »

It's most likely rose Black Spot, a common fungal disease in roses. Get an anti-fungal like Bayer's Alliete. First remove and discard far away all infected foliage then spray probably every week.
chickoo34
Posts: 126
Joined: April 4th, 2012, 12:34 pm
Country: pakistan
City: karachi
Location: Delhi Mercantile Society

Re: rose problem

Post by chickoo34 »

where could i get this in karachi??
chickoo34
Posts: 126
Joined: April 4th, 2012, 12:34 pm
Country: pakistan
City: karachi
Location: Delhi Mercantile Society

Re: rose problem

Post by chickoo34 »

I am spraying with a fungicide every week and also have discarded the old leaves...but stil the edges of leaves are turning brown and this time no black spots anywhere on the leaf... please help... :cry:
aykhan
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Re: rose problem

Post by aykhan »

It will help if you can post pictures.
chickoo34
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Joined: April 4th, 2012, 12:34 pm
Country: pakistan
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Re: rose problem

Post by chickoo34 »

here r they..
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chickoo34
Posts: 126
Joined: April 4th, 2012, 12:34 pm
Country: pakistan
City: karachi
Location: Delhi Mercantile Society

Re: rose problem

Post by chickoo34 »

h
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aykhan
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Re: rose problem

Post by aykhan »

Your pictures are quite blurred, it's hard to tell. The dark brown edges might be leaf burn from too much sun and or fertilizer. I think I saw some white too which might be spider mite if it's not the anti-fungal you just sprayed.
chickoo34
Posts: 126
Joined: April 4th, 2012, 12:34 pm
Country: pakistan
City: karachi
Location: Delhi Mercantile Society

Re: rose problem

Post by chickoo34 »

i have not added fertilizer since a month because i trnsplanted them into another pot.... it could be leaf burn because they were placed on the roof which gets 10 hrs of sunlight... i have brought them in my lawn which gets 5 hrs...the white thingee is the fungicide.... well thanks for reply...will post the condtion after some time....
aykhan
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Re: rose problem

Post by aykhan »

Probably too much sun then. Google rose spider mite and powdery mildew and see pictures to compare with the conditions of your plants.
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