The Phytosanitary Alert and Information Service (RAIF) of Andalusia's Council of Agriculture, Fisheries and Rural Development, has issued a series of recommendations to prevent the spread of Beet armyworm (Spodoptera exigua) and any damages to the crop that would entail significant economic losses.
High temperatures and humidity, around 20ºC and 90%, as well as a shaded environment, are the perfect breeding conditions for the insect in watermelons.
Some of the measures include ensuring the greenhouse's air-tightness by installing either double doors at the entrance, or, if applicable, a door and a mesh of considerable density. They also recommend setting up side and roof meshes and to frequently monitor and control their condition.
Eliminating weeds and crop residues, as well as removing and destroying damaged fruits are some of the recommendations of the Regional Government to prevent any damages caused by the pest.
Low levels
So far, according to the latest data from the Regional Government, the pest's presence is quite insignificant. In fact, until earlier this month, damages were detected in just 1 in every 300 plants and in 1 out of 20 greenhouses.
In any case, growers should not lower their guard, as Beet armyworm bites in watermelons usually causes major marketing problems.
Source: fhalmería