Opennatur

Adults: beetles about 1.5 cm. length and red – brown, with green metallic scutellum in the case of Phyllopertha horticola, and hairy black for Melolontha melolontha. Membranous elytra used to fly are hidden under the first pair of higher elytra.

Larvae: develop just below the soil surface. They are grayish-white, with a very prominent brown head which became dark grey at the bottom. Larvae take on the characteristic shape of letter C.

DETECTION AND MONIORING
Los adultos emergen durante los meses de Mayo y Junio por lo que las trampas deben colocarse lo antes posible para efectuar el monitoreo de la zona deseada. Este dispositivo permitirá detectar nuevos focos de manera complementaria a la inspección visual.

• Place a Unitrap green with yellow barrier (Funnel) trap per 2 hectare of crop or monitored area.
• Place the trap hanging above 70-90 cm from the soil
• Place the trap in the edge of the plot.
• Place the pheromone inside the trap as it’s explained at the back of the booklet. Use gloves.
• Put the insecticide (DDVP vapone) inside the trap in order to cause the insect death.
• Traps are controlled once a week to collect and note the number of insects catch. It is also necessary to check that traps are still well placed.
• Attractants must be renewed every 6 weeks.

MASS TRAPPING
As a Kariomone is used as attractant both males and females are captured, and it’s possible to carry out the control of the pest by mass trapping.

To carry out the control of the pest using mass trapping, follow these instructions:

• Place from 5 to 10 traps/ha in the area to control. Use the device in areas which have suffered from huge damage on previous years or that have elevated indices of caught on monitoring devices.
• Place traps inside and outside of the parcel or area to be controlled.
• Strengthen the areas where catches are higher (reduce the distance between traps until 25 meters)
• Mass trapping will mainly be conducted from spring to summer (specifically from April to July)