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Top Questions About Guava

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Questions About Guava

  • Answered by
    drtreelove on
    February 12, 2019
    A.

    Identifying the pest is important in order to get specific control recommendation. But there are some general considerations. Don't underestimate the importance of good soil and water management, and sanitation.

    Starting early with preventive control measures is important, it is difficult to control an active infestation.

    From my experience growing mangoes and guavas which are both susceptible to fruit fly infestation, the pheromone and vinegar traps are least effective because they only get a percent of adult flies and leave many more to infest the fruit. The bagging method and early harvest if possible is best, along with good growing conditions and sanitation.

    This is from Australia, but you may find something similar in SA, or make your own.
    https://www.ebay.com.au/itm/20-Fruit-Protection-Bags-Stop-Fruit-Fly-Exclusion-Bag-/391416884513

    Organic botanical pest repellents need frequent spraying, every week during peak infestation times and are marginally effective for fruit flies, if that's what it is.

    I'm an American arborist, I've been to SA twice but never worked there, so you may want to seek local professional advise for identification and treatment recommendations.

    These articles may help:

    https://www.gardeningknowhow.com/edible/fruits/guava/guava-pest-control.htm

    https://homeguides.sfgate.com/treat-fruit-flies-guavas-30550.html

    I have not used the biological controls and sterile fly release methods, but that is something to consider.

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  • Answered by
    Downtoearthdigs on
    May 17, 2019
    A.

    I don't know if this much change in size is viable, but you certainly can prune to improve shape and fruit production.
    This article will help you.
    https://www.gardeningknowhow.com/edible/fruits/guava/guava-tree-pruning.htm

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  • Answered by
    BushDoctor on
    June 16, 2019
    Certified Expert
    A.

    Without photos it would be hard to say. If that is the only thing that the tree has been fed with, then I would suggest that the tree may be lacking in nutrients. There are many fruit tree fertilizers on the market, and most will work just fine.

    Please include some photos, and I will be able to help you a little better. In the meantime, this article will help: https://www.gardeningknowhow.com/edible/fruits/guava/guava-tree-wont-fruit.htm

    This article will give you information on growing guava trees: https://www.gardeningknowhow.com/edible/fruits/guava/growing-guava-fruit-trees.htm

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  • Answered by
    Buzz on
    June 18, 2019
    A.

    Sure and thank you for your prompt response. I will try to share and upload few images of the plant ASAP.
    Best Regards
    Buzz

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  • Answered by
    BushDoctor on
    June 18, 2019
    Certified Expert
    A.

    Your tree is healthy! There should be no worry here at all. Your tree is simply too young to bear fruit properly.

    You may have a few remain to ripen this year, but proper pruning will ensure future harvests. This article will help you to do so, properly: https://www.gardeningknowhow.com/edible/fruits/guava/guava-tree-pruning.htm

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  • Answered by
    Buzz on
    June 19, 2019
    A.

    Thank you so much for your advice and suggestion.
    Best regards
    Buzz

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  • Answered by
    BushDoctor on
    October 8, 2019
    Certified Expert
    A.

    That appears to be a fungal/bacterial issue. I would treat with a fungicide, and only water it when the soil remains dry to long periods.

    These articles will help: https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm

    https://www.gardeningknowhow.com/edible/fruits/guava/growing-guava-fruit-trees.htm

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  • Answered by
    GKH_Susan on
    October 14, 2019
    Certified Expert
    A.

    These articles should help:

    https://www.gardeningknowhow.com/edible/fruits/mango/mango-trees-in-pots.htm

    https://www.gardeningknowhow.com/edible/fruits/guava/growing-guava-in-containers.htm

    https://www.gardeningknowhow.com/edible/fruits/oranges/orange-tree-container-care.htm

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  • Answered by
    GKH_Susan on
    January 9, 2020
    Certified Expert
    A.

    From the photos, with the drying of leaf tips and leaf edges, I suspect water deficit/ drought stress. It needs more watering, deeper and more frequent. And the yellowing of the leaves indicates nutrient deficiency.

    Soil fertility and water management are vital for plant health, flowering and fruit development.

    Water a wide area not just near the tree trunk, water the entire area of the absorbing root zone which spreads as far as the foliar canopy and more. Water deeply to wet the soil a minimum of six inches, preferably to 10 - 12 inches.

    Mulch the soil surface to help retain soil moisture.

    Fertilize spring and summer with a slow release complete organic fertilizer.

    https://www.gardeningknowhow.com/edible/fruits/guava/growing-guava-fruit-trees.htm

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