Decreased Water Use in a Super-Intensive Olive Orchard Mediates Arthropod Populations and Pest Damage

In Spain, water use in agriculture is expected to become limited by resources the future. It pertinent study effect of decreased irrigation on presence pests, plant damage, and arthropod communities a super-intensive olive orchard examined from 2017 2019. Arthropods were studied with visual vacuum sampling methods two treatments (T1—control T2—Regulated Deficit Irrigation (RDI)). Univariate analyses showed that total abundance was significantly greater T1 than T2 2018 2019, mostly due Diptera Nematocera. Visual revealed feeding damage produced Eriophyidae (Trombidiformes) lower 2019: 10–40% shoots affected late season compared 50–60% for T1. The symptoms caused Palpita unionalis Hübner (Lepidoptera: Crambidae) Zelleria oleastrella (Milliere) Yponomeutidae) less Multivariate principal response curves significant differences between strategies 2019 data both methods. conclusion, schemes restricted (T2—RDI) help reduce several types pests crops, especially those feed plants’ new sprouts.