How to stop bugs eating my Guava fruit?

[AlejoGC]

 

  

As you can see my white guava fruit are being infested by grubs and bugs. Any suggestions as to how I can stop the critters before they infest the fruit would be greatly appreciated. I had been spraying Yates Nature’s Way FruitFly Control to see if I could mitigate infestation before the fruit started to grow but alas, I failed.

 

 

[JacobZ]

Hi @nghiemhung,

Thank you for your question about your guava tree.

Can you upload some photos of the net you've got over your guava tree? If it is sufficiently secured on all sides with no holes or entry points, then the bugs shouldn't be able to get through. Refining your net's anchoring method might be a good place to start.

I'm happy to offer recommendations on this once you've uploaded some images. Let me know if you need a hand with this.

Are you aware of what insects are getting in and eating your guava? If there is a specific insect that is causing trouble, this would help us narrow down our efforts.

You can try an insecticide like Pyrethrum, but if we can narrow down the critters that are eating your fruit, there may be a better product.

Allow me to tag @Noelle and @mich1972 for their thoughts.

Let me know what you think.

Jacob 

[Noelle]

Hi @nghiemhung 

The internal damage looks very similar to the larvae and eggs of a wasp of some sort, which has penetrated the skin of the guavas and paid her eggs in the flesh.

In addition to the information Jacob has asked for about the netting over the tree, it would be helpful to know your location, so we can get some idea of the pests which may occur in your area.

It may possibly be fruit fly but the eggs were laid and the damage done to the fruits before you became aware of their presence.

Sticky yellow traps or pheromone insect traps hung in the tree from flowering time would assist in controlling whatever the pest is - alas, it's too late this year but keep that in mind for next year.

[Nham]

Hi @nghiemhung , 

We also have quite a large fruit tree. To cover the entire tree, we have two nets, we overlap the nets and secure using clothes pegs. With the pegs you can just move them around to secure other spots when needed. We take off the net after each season and do some light pruning.