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What kind of pesticides are used in leek maggots

Published: 2024-11-25 Author: mysheen
Last Updated: 2024/11/25, Leek is highly adaptable, cold-resistant and heat-resistant, and is cultivated all over the country. So what kind of pesticide do leek maggots use? What kind of pesticide does leek maggot use? The roots were irrigated with 2000 times of chlorpyrifos and 3000 times of Emile, once every 7 days, 3 times continuously.

Leek is highly adaptable, cold-resistant and heat-resistant, and is cultivated all over the country. So what kind of pesticide do leek maggots use?

What kind of pesticide does leek maggot use?

The root was irrigated with chlorpyrifos 2000 times solution and Emile 3000 times solution, once every 7 days, continuously for 3 times, and the control effect reached more than 90%. After root irrigation, it is forbidden to eat leek within 40 days. You can take this opportunity to fertilize and strengthen the seedlings of Chinese chives to strengthen their growth and resistance.

Second, the morphological characteristics of leek.

Root: a fibrous root system that is chord root and has no main and lateral roots. Mainly distributed in the 30cm tillage layer, the number of roots is about 40, which can be divided into three types: absorbing roots, semi-storage roots and storage roots. Born at the base of the shortened stem, the shortened stem is a discoid metamorphosis of the stem, rooting in the lower part and leafy in the upper part.

Stem: the stem is divided into vegetative stem and flower stem. The biennial vegetative stem is shortened and metamorphosed into a disk. Chen is called the bulb disk. Due to tillering and root jumping, the shortened stem gradually grows to the surface, with an average annual elongation of 1.0-2.0cm, and a gourd-like rhizome is formed under the bulb disc. Rhizome is an important organ for storing nutrients.

Leaves: leaves clustered, leaves short on stem, leaf blade flattened banded, can be divided into broad leaves and narrow leaves. There is wax powder on the surface of the leaf, and the stomata fall into the stratum corneum.

Flower: an umbel covered by a paniculate involucre with 20-30 florets. The floret is bisexual, with white Corolla, 6 tepals and 6 stamens. Ovary superior, cross-pollination.

Fruit seed: the fruit is a capsule, the ovary is 3-loculed, and each chamber has two ovules. The mature seed is black, shield-shaped, and the 1000-grain weight is 4-6g.

Leek leaves, scape and flowers are used as vegetables; seeds can be used as medicine, with kidney, stomach, refreshing, antiperspirant and astringent effects. In traditional Chinese medicine, some people call leek "intestinal lavage grass".

 
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