-
What are the specific insecticides for the small brown planthopper? Scientific application gives good results
The small brown planthopper (Laodelphax striatellus) is widely distributed in East Asia, Southeast Asia, Europe and North Africa, and within China it is found throughout the country, with more in the Yangtze River basin and northern rice-growing areas. So what are the specific insecticides for the small brown planthopper? What are good control methods? 1. Specific insecticides for the small brown planthopper Control
-
What pesticide works well for controlling rice planthoppers
For farmers, the most distressing thing is none other than their hard-grown crops being attacked by various diseases. So what pesticide should be used for rice planthoppers? Let's take a look at this question together! 1. What pesticide to use for rice planthoppers. Rice planthoppers can be controlled with leafhopper powder, imidacloprid,
-
Control Methods for the Small Brown Planthopper at the Rice Heading Stage
The small brown planthopper (Laodelphax striatellus) not only transmits viruses that cause rice viral diseases such as rice stripe virus disease, but also congregates on the panicles to cause damage during the heading stage of late rice. To clarify the control efficacy of pymetrozine and other pesticides against the small brown planthopper at the heading stage of late rice and the application techniques, Cheng Qinhai and others from the Plant Protection Station of Haining City, Zhejiang Province, conducted field
-
Control Methods for Mango Flatid Planthopper
The mango flatid planthopper, also called the leafhopper, damages flower spikes and young fruit, causing flower and fruit drop, poor harvest or even total crop failure, and induces severe sooty mold. It also damages young buds, tender shoots and leaves, causing bud and leaf deformity. It usually occurs more frequently during the flowering period, and high humidity and a dense canopy make this insect more likely to appear.
-
Identification and Control Methods for the White-backed Planthopper on Rice
Hosts include rice, wild rice, corn, barley, wheat, sugarcane, sorghum, barnyard grass, and Kentucky bluegrass. The damage characteristics are the same as those of the brown planthopper. Morphological features: The macropterous male is 3.2-3.8mm long, pale yellow, with dark brown spots. The top of the head protrudes forward; on the outer side of the lateral ridges of the pronotum and mesonotum, behind the compound eyes, there is a crescent-shaped dark brown spot; the lateral areas of the mesonotum are dark brown with a yellow longitudinal band in the middle; the forewings are semi-transparent with brownish halo spots at the tips; the wing veins, face, thorax, and ventral surface of the abdomen are dark brown. The macropterous female is 4-4
-
Methods and Technical Key Points for Controlling the White-Backed Planthopper in Rice
Damage symptoms: Adults and nymphs gather in colonies at the base of rice plants and pierce and suck the sap, causing the leaf tips of rice leaves to lose green and turn yellow, and in severe cases the whole plant withers and dies. Damage during the heading stage can also cause difficulty in heading, blighted panicles, or browning of the panicles, along with many empty grains and other damage symptoms. Morphological characteristics: Adults have two forms, the long-winged type and the short-winged type. The long-winged adult is 4-5 mm long, grayish yellow, with a rather narrow vertex projecting in front of the compound eyes; the face has 3 raised longitudinal ridges, with the ridges light in color and the grooves dark, black and white sharply distinct; in the center of the scutellum on the thoracic dorsum grows a pentagonal white or bluish-white spot; in females the
-
What are the control methods for the white-backed planthopper on rice?
Scientific name Sogatella furcifera (Horvath), belonging to the order Homoptera, family Delphacidae. Distributed in the water bamboo and rice-growing areas of China. Hosts include rice, water bamboo, corn, barley, wheat, sugarcane, sorghum, barnyardgrass, bluegrass, and others. Damage characteristics are the same as those of the brown planthopper. Morphological features: macropterous male body length 3.2-3.8 mm, light yellow, with dark brown spots. Vertex projecting forward; on the outer side of the lateral carinae of the pronotum and mesonotum, behind the compound eyes, there is 1 crescent-shaped dark brown spot; the lateral area of the mesonotum is dark brown
-
Which varieties can be used to control the white-backed planthopper in rice?
To control the white-backed planthopper in rice, the varieties that can be used are: (1) Buprofezin. The recommended dosage is 7.5-12.5 grams of active ingredient per mu. The key application technique is: spray at the early outbreak stage of the brown planthopper, and it is best to maintain a water layer in the field when applying. (2) Imidacloprid. The recommended dosage is 1-2 grams of active ingredient per mu. The key application technique is: spray at the early outbreak stage of the brown planthopper.
-
Fuyang's stretcher-type high-pressure sprayers achieve remarkable results in controlling brown planthopper
This year is the most severe year for late rice brown planthopper infestation in Fuyang City in more than a decade. Doing a good job in controlling late rice brown planthopper concerns food production security, farmers' income growth and rural social stability. Government departments at all levels in Fuyang City attach great importance to this, truly treating the control of late rice brown planthopper as the top priority in current agriculture and rural work, and making concerted efforts to fight this battle against brown planthopper. The Fuyang City Agricultural Machinery Extension Station introduced and promoted a new type of stretcher-type high-pressure sprayer that had once made great contributions to increasing the yield and income of Dongqiao Chinese torreya (Torreya grandis), and now it has once again rendered outstanding service in brown planthopper control.
-
Control recommendations for the fourth generation of white-backed planthopper in rice issued, please carry out timely prevention and control
For the pesticide, use 40% chlorpyrifos (Xinnongbao, Saiben) 100 ml/mu plus 25% buprofezin (Puhsiling) 50 g/mu plus 5% jinggangmycin 200 ml/mu (or 30% Aimiao 15 ml/mu), mix with 30 kg of water for fine spraying.
条件筛选