Plum moth pheromone

The pheromone is impregnated with the scent that the females spread to attract the males. The pheromone is therefore species-specific. You cannot attract a fruit moth with a pheromone plum moth.

The males, attracted by the female sex pheromone, fly to the scent and land on the glue plate. One pheromone capsule works for 6 weeks. After that, the pheromone capsule must be replaced by a new capsule.

What does the pheromone trap do?

A pheromone trap is a tool to monitor and control harmful plum moths. The more males are caught, the fewer females can be fertilized. Less fertilization leads to less egg laying and therefore fewer harmful caterpillars.

This method only really offers protection when the population of harmful moths has been reduced. It is because there are fewer or even no moths flying in your area that the damage becomes minimal or even nil. The first few years you catch a lot of moths and you can also still have a lot of damage. As the years go by you catch less and get better results.

Thanks to the pheromone trap, you will know exactly when the plum moth flight starts at your place. If you want to spray a remedy against plum moth, you can do this much more targeted thanks to this monitoring.

When to hang out the pheromone trap?

The pheromone trap must be hung before the plum moth starts its flight and until the end of the flight.

Due to global warming, the period between flight start and end dates is much further apart than 10 years ago.

Therefore we advise to hang the trap from mid-April and keep it hanging until the end of September if you have late plums. You can buy extra pheromone capsules separately.

Can I hang a pheromone trap later than mid-April?

Definitely! The plum moth has two generations per year and flies continuously until the end of September. So it is definitely interesting to hang a pheromone trap during this period. Next year you hang the trap from mid-April.

How many traps should I hang?

Hang 1 trap per 5 low-stemmed fruit trees. The fruit trees must be situated within a radius of 25 metres around the trap. In the case of adult high-stemmed trees, hang 1 pheromone trap per tree or per two trees, depending on the infection pressure that is present.

Hanging too many traps is not good. So never hang multiple traps in one tree. This way, moths are attracted en masse, but they no longer find the traps because the pheromone scent is omnipresent.

Where to hang the plum moth pheromone trap?

Hang the trap on the side of the tree, out of the wind and yet in an airy place. Ideally, you hang the pheromone trap perpendicular to the wind direction, so the scent spreads more homogeneously and you avoid catching too many flies.

Definitely do not hang under dense foliage; this way the pheromone scent cannot spread properly.

Storing pheromone capsules

Store the pheromone capsule in the freezer in a closed jar to retain the pheromone scent as much as possible. You can use pheromone capsules that you store in the freezer the year of purchase and the year after. Never store pheromone capsules at room temperature for a longer period of time, as this will cause the pheromone to lose its effectiveness.

Our pheromone capsules are freshly produced annually. Each capsule is individually wrapped and stored in the freezer until dispatch. This way we can guarantee 100% good scent quality of the pheromones.

I have late plums, what now?

This package 'deltaval plum moth' contains two pheromone capsules as standard. This is sufficient to catch the plum moth for 12 weeks. In case of late plums, buy two extra pheromone capsules.

Buy pheromones separately

Since the delta trap can easily be used for three years, you can purchase the adhesive bases and pheromone capsules separately in our webshop.