wisteria racems

Question

Wisteria buds all formed and beginning to lengthen but are drying up and falling off before blooming. Is there a problem I can rectify?

Answer 1

It is likely caused by thrips. Some varieties of thrips attack the base of flower buds and cause them to dry up and fall off before they open.

A less likely cause may be a fungus.

Treat the plant with both a pesticide and a fungicide. This article will have more information about thrips:
https://www.gardeningknowhow.com/plant-problems/pests/insects/controlling-thrips.htm