1.SWEET POTATO-Test Purpose & Design

1. Test purpose: To test the droplet distribution and aphid efficacy investigation of EAVISION Drone in the sweet potato field.

2. Test design: There are two routes in the test area (1 circle) and 3 test papers are placed as the repeated control area. test papers are placed on the front and back sides of each test strip leaf, and one row is placed on the left and right sides of the two routes. One row of test cards are placed directly below the drone on the two routes, and two rows of test cards are placed in the middle of the two routes;

3. The parameters are set as follows: flight height: 1m; flight speed: 3 m/s; atomization: 130 μm; liquids per mu: 1 L; spray width: 3m;

4. The conditions of aphids should be investigated before application. Investigation will be carried out after 1 day and 3 days after application.

2 SWEET POTATO-Pesticide Composition & Dosage

This application is mainly for prodenia litura.

3 SWEET POTATO-Droplet Test Data & Analysis

Test data showed that the distribution of droplets on the 3 test strips is irregular.

The droplets in the same position varied greatly, and there were very few liquids on the test paper. During the test, there is only one layer of the test paper, and there is no wind during the application. It was difficult to understand why this was happening.

4 SWEET POTATO-Observation of Insect Pests in the Field before Application

It was found after investigation that the insect pest in the sweet potato field is prodenia litura larvae. This is due to the sweet potato fields being adjacent to the main road and street lights attracting adults at night. The other two non-road plots are less affected.

5 SWEET POTATO-Observation of Pesticide Effect in the Field after Application

The larvae death rate was about 60% three days after application