Sticky trap pattern size for thrips spatial vision

Colored sticky traps are used for the management of many common agricultural insect pests. Several recent studies have shown that traps can be improved by systematically considering properties of color vision for the intended target species. In the current study, we extend this approach to spatial vision, using information about the interommatidial angle of an agriculturally important insect pest, western flower thrips (WFT) Frankliniella occidentalis (Pergande), to predict the spatial resolution capabilities for a yellow flower pattern across a range of viewing distances. We tested the hypothesis that pattern sizes matching the spatial resolution capabilities of WFT at a given viewing distance would outperform traps with mismatched pattern sizes by measuring the number of WFT caught on sticky traps containing differently sized flower patterns resolvable at either 5, 10, or 20 cm, respectively. We found an interaction between pattern size and viewing distance on WFT catch, with sig..., , , # Sticky trap pattern size for thrips spatial vision

[https://doi.org/10.5061/dryad.1zcrjdg2x](https://doi.org/10.5061/dryad.1zcrjdg2x)

## Description of the data and file structure

Number of thrips caught on sticky traps with different-sized flower patterns in lab and field conditions.

Laboratory study: Approximately 50 adult thrips were released from the center of an enclosed arena containing sticky traps. After 2 hours, traps were collected, and the number of thrips on each trap was counted.

Field study: Sticky traps were hung at different heights above the crop canopy and left for 48 hours. Traps were collected after this period, and the number of thrips counted.

### Files and variables

#### File: Thrip\_Data\_R.csv

**Description:** 

##### Variables

* Position: randomized position within the experimental arena (A, B, or C)
* Count: number of thrips on each trap 
* Distance: distance traps were placed from the release point in cm
* Size: stimuli pattern size (S = small, M =...,