Q.My Orange Tree (indoor) Had An Aphid Attack And Now Won\’t Stop Producing Honeydew. What Can I Do To Stop It Please?
The orange tree is about 3 yrs old. It is kept indoors most of the time. I feed it with citrus food when required. It has produced a few oranges. It blossomed late last year which was unexpected, producing new fruit whilst the original ones were still ripening. The new fruit have since all fallen off when they were still very small. I have sprayed it with soapy water and removed aphids by hand also but I can’t stop it from producing honeydew which is making quite a mess. Any advice appreciated.

Certified GKH Gardening Expert
The only way to stop the sap flow will be to stop the aphid infection, completely.
The aphids pierce tiny holes, which will only flow for a few hours before being self-sealed. Any new flow that you see is a result of current infestation.
There are many ways to get rid of aphids. These articles will help:
https://www.gardeningknowhow.com/special/organic/what-are-organic-pesticides.htm
https://www.gardeningknowhow.com/plant-problems/pests/insects/homemade-aphid-control.htm