Currently, pear blossoms are blooming everywhere, creating a sea of flowers. The spring breeze blows, and the flowers sway gently, filling the air with fragrance. Many tourists walk through the greenery to enjoy the blossoms and appreciate the beauty of nature.
However, pests like leaf mites and pear small insectivores, as well as diseases like rot disease, rotiferous, and black star disease, are quietly spreading. Among them, the two-spotted leaf mite is the most common.
The two-spotted leaf mite, also known as the white spider, is a global pest. It creates silk webs and lives in groups, crawling and spreading between them. This mite often experiences large outbreaks and causes significant damage.
The two-spotted leaf mite mainly affects the leaves. It sucks sap from the underside of the leaf. Initially, pale spots appear along the main vein near the petiole. As the damage worsens, the spots become small white, greenish areas, eventually turning gray-white or gray-brown. This weakens or eliminates photosynthesis, causing the leaves to scorch and fall off prematurely.
The LJ Tech multifunctional orchard robot
In pear orchards, it is crucial to focus on spraying the back of the leaves. Plant protection machines capable of spraying both sides should be used.
Pear trees typically bloom in mid-April. After overwintering, the mites feed on the inner leaves of the crown and spread outward, laying eggs. The first generation of eggs peaks in early May. From June to August, mite infestations reach their peak.
Why focus on the control of two-spotted leaf mites?
Why focus on controlling two-spotted leaf mites?
Rising Temperatures Speed Up Reproduction: As temperatures increase, the reproduction rate of two-spotted leaf mites accelerates. Their optimal temperature is 21–35°C, with relative humidity between 35% and 55%. Overwintering females start laying eggs, and it takes 20–30 days for the first generation to hatch. With rising temperatures, reproduction becomes faster: at 23°C, a generation takes 13 days; at 26°C, it takes 8–9 days; and at temperatures above 30°C, a generation completes in 6–7 days.
Wide Host Range: Two-spotted leaf mites can affect many types of plants. Their wide host range and ability to migrate make control difficult. If not managed in time, the mites can spread quickly.
To control the spread of these mites, it’s essential to use efficient plant protection machinery. Timely and precise spraying is key to successful pest control.
The LJ Tech multifunctional orchard robot features 12 groups of dual-bore nozzles. These nozzles can be adjusted for 360° angles and 180° fan-shaped coverage, ensuring no area is missed. The robot also has a 16-liter tank for 6 hours of continuous operation. The 450-liter medicine box allows for half an hour of spraying per load.
