In general, the quantity of seeds in a fruit determines its size and quality.
Biobest N.V. produces bumblebee hives for fruit production.
Contrary to honeybees which work well only when weather is warm and sunny, bumblebees also perform when it is cold and rainy.
Coddling moths can cause serious losses in apple and pear cultures by infecting fruitlets which results in premature losses or storage problems.
Granupom is a selective biological insecticide, based on the Cydia pomonella (Codling moth) granulosis virus, for the control of Codling moth in fruit production.
Treatment has to be applied in relation with duration and intensity of moth flights, which can be determined by using pheromone traps.
In general, a treatment with 500 ml/ha is sufficient.
For the first treatment, you can use a dose of 300 ml/ha, and the remaining quantity (200 ml) can be used for 2 or 3 additional sprays at 1-week intervals.
* Granupom is only allowed in Belgium.
For application in fruit production, different kinds of pheromone lures are available. The pheromone lures are sold in packages of two lures, and last 5 to 7 weeks. Store lures in a refrigerator or freezer.
Here is a list of pest insects for which pheromone lures are:
Adoxophyes orana Summer Fruit Tortrix
Cydia pomonella Coddling moth
Synanthedon myopaeformis Small red-belted clearwing
Zeuzera pyrina Leopard moth
Cossus cossus Goat moth
Hedya dimidioalba Pear leaf blister moth
Leucoptera scitella Spotted tentiform leafminer
Lymantria dispar Gypsi moth
Pandemis heparana Dark fruit tree Tortrix (moth)
Spilonota ocellana Eye spotted bud moth
Period of treatment
By monitoring the Codling moth flight fecundity can be exactly determined and treatment can be applied at the right moment.
Damage treshold
When more than 25 moths/ha are captures, the economic damage trehold is exceeded, and it is time to spray.
Anthocoris nemoralis is a predator of the pear psylla. Anthocoris is introduced in pear orchards where its natural population is too low.
In general, introduction of 1.000 Anthocoris/ha is recommended (1 or 2 introductions; 5 introduction points/ha) around the month of April for North-Europe. For the southern countries other quantities and introduction periods are applicable.