Develops on the underside of leaves causing discoloration and yellowing, and the stains can be seen in the light, as the first symptoms.
With older crops, there is drying or even foliation. The most serious attacks occur in the early stages. High temperatures and low relative humidity favor the development of the pest.
-Disinfection of structures and soil prior to the planting in plots, which have a history of red spider.
-Elimination of weeds and crop residues.
-Avoid excessive nitrogen.
-Crop monitoring during the early stages of development.
-Biological control by natural enemies:
-There are species that prey on eggs, larvae and adults of red spider.
This pest mainly attacks the cultivation of pepper, but has been detected occasionally in tomato, eggplant, beans and cucumber. Early symptoms can be seen as a ripple of nerves in the leaves and apical buds, and the leaves develop curvatures. In more advanced attacks, dwarfism occurs which is an intense green coloration of plants. It is distributed by sources inside the greenhouse, but disperses quickly in hot, dry periods.
About the Author: