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Burke's Backyard Message Board > Growing fruit and vegetables  
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BobnMas
Forum newbie - be nice!

Posts: 2
Location: Shoal Bay NSW
Registered: October 2009

No Man goes ...?

Posted 804 days ago

Have a mango tree at Shoal Bay which was fruiting really well as a youngster. About 7 years ago it started out fine, but then all the flower heads died off and I lost all fruit. Has happened every year since (although this year I still have some fruit left, touch wood!).

Local nursery says it is anthracnose, and I should spray with copper oxychloride or mancozeb. Have done that for the past 5 years, with no better result.
Heard on a talkback show in QLD that ANY spraying with copper products will kill the flowers, thus no fruit.

Is this the case?
Cheers, Bob

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dragonace
Forum stalwart

Posts: 200
Location: Parramtta, NSW
Registered: June 2009

RE: No Man goes ...?

Posted 804 days ago

i copied this from somewhere but it works i guess try following this. You may be doing something wrong. Also feed and water the plant regularly and keep the leave dry as anthracnose likes water.

CONTROL
Regular spraying of trees from flowering time onwards with mancozeb (at recommended label rates every 14 days) is useful to reduce the level of infection in the developing fruit. Do not use mancozeb within 14 days of harvest. If anthracnose becomes serious in green immature fruit it could be useful to give a couple of judicious sprays of prochloraz. It is important however not to overuse prochloraz as this may lead to development of resistant anthracnose strains. Copper sprays recommended for the control of mango scab will also control anthracnose with only a one day withholding period.

_________
No gardener is really good before he has killed one or two plants.

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Georgen
Forum stalwart

Posts: 96
Location: NSW
Registered: August 2009

RE: No Man goes ...?

Posted 803 days ago

I heard that mango is not the best in humid wet conditions when fruit is set. Some areas are not good for mango growing cycle.

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dragonace
Forum stalwart

Posts: 200
Location: Parramtta, NSW
Registered: June 2009

RE: No Man goes ...?

Posted 803 days ago

Georgen it depends on the disease really. unfortunately the disease spreads in wet conditions when the fruit is getting ripe. NT is not affected by it since the fruit ripens in dry humid conditions
_________
No gardener is really good before he has killed one or two plants.

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