What pesticides are used in sugarcane?

Sugarcane is a common fruit in life, which is deeply loved by people because of its juicy and sweet taste. it is planted in many areas, but during the planting period, there will be a variety of diseases and insect pests, so what kind of pesticides are used in sugarcane?

1. Pineapple disease

Pineapple disease is a fungal disease, which mainly infects sugarcane seedlings, so that it can not germinate and cause serious losses. Low temperature, high humidity, long-term rainy weather or too dry and other factors that are not conducive to the germination of sugarcane seedlings can induce the occurrence of the disease.

Prevention and control methods:

(1) selection of disease-resistant varieties.

(2) disinfection of seedlings. Soak the seeds of 10min with 1000 times of carbendazim or topiramate.

(3) after peeling the seedlings, soak the seeds with 2% lime water for 24 hours, or soak the seeds with clean water for 2 days.

(4) implement the rotation of flood and drought.

2. Red rot

Red rot is a fungal disease. Mainly damage the sugarcane and leaf midrib. The early appearance of the injured stem did not have any symptoms. During the longitudinal section of the stem, the sugarcane flesh was red, and the middle part was mixed with white round or oblong patches perpendicular to the sugarcane, which emitted the sour taste of starch fermentation. the midrib of the damaged sugarcane leaves showed bright red spots at the initial stage and rapidly expanded into a spindle shape. the center of the leaf withered into gray or culm yellow, and the edge was dark red. The suitable growth temperature of the pathogen was 27 ℃. Through borer damage holes, growth cracks and other invasion.

Prevention and control methods:

(1) selection of disease-resistant varieties

(2) add 50% benzoate 1500 times suspension to 52 ℃ warm water to soak the seeds 20-30min, or soak the seeds in 52 ℃ hot water and then immerse 2-3min in 0.2% Muir 0.3% organic mercury.

(3) kill the borer in time.

(4) burn diseased plants and diseased leaves in time after sugarcane harvest.

3. Smut

Smut is a fungal disease. It is characterized by the growth of a black whip (black spike) at the top of the sugarcane. The black spike is straight, curly or curved, and unbranched. The susceptible sugarcane species germinated earlier and the growth of sugarcane plants was weak. The leaf blade is narrow and long, the color is light green, and the Internode is short. The disease occurred more frequently in ratoon sugarcane, tillering stems and sugarcane fields with dry, lean and poor management. The favorable conditions for the occurrence of the disease are high temperature and humidity, stagnant water in rainy season or sugarcane field, more rain after drought and so on. The media is mainly airflow.

Prevention and control methods:

(1) selection of disease-resistant varieties.

(2) disinfection of seedlings. Soak the seeds of 5min with 0.5% methoxyethyl mercuric chloride, or soak 20min with 50 mi 52 ℃ warm water.

(3) properly apply more phosphorus and potassium fertilizer to promote the early growth and rapid development of sugarcane.

(4) the diseased plants were pulled out in time and burned centrally.

(5) rotation is carried out, and there are no persistent roots in the disease area.

4. Borer

The borer, also known as sugarcane borer, has extremely strong fecundity and no obvious dormancy period. it is harmful to sugarcane all the year round and often drills into the interior of sugarcane, resulting in the hollow of sugarcane and the formation of withered seedlings in the seedling stage. Even after growing, it is extremely weak and easy to break, and its insect pests are also easy to cause the invasion of other diseases, which do great harm to sugarcane.

Prevention and control methods:

The main results are as follows: (1) when planting, 5 kg of ground insecticidal or 5 kg of ground insecticidal or 5 kg of Milol granule mixed with base fertilizer were applied into the sowing ditch, and then planted and covered with soil, and then deeply applied with the same amount of soil combined with fertilizer.

(2) when a small amount of withered heart seedlings appeared in the seedling stage, a knife was used to pry off the roots and burn them. When a small amount of stem decay was found in the middle and later stage, a sharp knife was used to pierce the borer hole to kill the larvae or the syringe was directly injected into the insect track.

(3) large area spray. If you want to select the right medicament, you must pay attention to the mixture of long-acting pesticides and quick-acting pesticides. The amount of water used per mu is 45ml 90kg, mainly sprayed on the heart leaf, leaf sheath and wormhole. The recommended pesticide varieties are 1000 times of 5% fipronil or 98% of Batan powder or 1000 times of 10% fenitrothion, etc., used alternately, properly mixed with kung fu, Nongdi Le, Baishu, Didijing, aphid borer, quick culling, phoxim and so on.