La Vega Baja del Segura is located in the province of Alicante, Valencian Community. The Vega Baja regions have been hit with damage to crops of citrus trees by the disease Pulvinaria polygonate, known as Cottony Citrus Scale or Mango Scale.
The latest concerns of citrus crop damage comes after researchers from the Agro-forestry Institute of the Polytechnic University of Valencia took samples, that laboratory analysis identified as a pest belonging to the species Pulvinaria polygonata, an identity confirmed by researchers from the University of Padua in Italy, where samples were sent in March.
The first vestiges were detected in June 2019 in orange, mandarin, clementine and lemon trees – located in the San Miguel de las Salinas, Alicante.
The accumulation of Pulvinaria polygonata molasses in leaves and branches appear in the main at the top of trees. The disease was previously known as a major mango pest. The main damages it produces are due to the suction of the sap, which weakens the tree, and to the accumulation of molasses excreted by nymphs and adult females.