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Acaricidal composition of D-limonene and rotenone and application of acaricidal composition

The technology of a composition and rotenone, which is applied in the field of pesticides, can solve the problems of decreasing and aggravating effects of acaricides, and achieve the effects of difficult generation of resistance, simple preparation process, and good comprehensive regulation effect.

Active Publication Date: 2018-11-13
SOUTH CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The damage of crop spider mites, such as Panonychus citrus, Tetranychus urticae, and Tetranychus cinnabarinus, has increased year by year, and the resistance has developed rapidly, resulting in the decline of the effectiveness of most acaricides

Method used

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  • Acaricidal composition of D-limonene and rotenone and application of acaricidal composition
  • Acaricidal composition of D-limonene and rotenone and application of acaricidal composition
  • Acaricidal composition of D-limonene and rotenone and application of acaricidal composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The contact activity of embodiment 1D-limonene to Panonychus citrus

[0026] The slide dipping method recommended by FAO was used. Stick the double-sided adhesive on the glass slide, pick a healthy and lively adult female mite of the same size with a zero brush, gently stick its back on the double-sided adhesive, put the glued glass slide on the tray, Place in RXZ incubator (28±1°C, 65±5% RH, 16:8(L:D)). After 4 hours, observe under the microscope, remove the dead and inactive mites, record the number of live mites, and then put the slide in the petri dish containing the medicine for 5 seconds, gently absorb the medicine around the mites with paper, and wait until completely After drying, place in the incubator. Each concentration was treated with 3 replicates. Observe and record the number of deaths for 24 hours (touch lightly with a brush during observation, and the body does not move as death), and the specific results are shown in Table 1.

[0027] Table 1 Deter...

Embodiment 2

[0030] Example 2 Activity of D-limonene on nymphs of Panonychus citrus

[0031] The toxic activity of D-limonene on nymphs of Panonychus citrus was determined by spray method, and the specific results are shown in Table 2.

[0032] Table 2 Determination of the contact activity of D-limonene on nymphs of Panonychus citrus (spray method)

[0033]

[0034] The results in Table 2 show that D-limonene also has poisonous activity against nymphs of Panonychus citrus.

Embodiment 3

[0035] Example 3 Oviposition Inhibitory Effect of D-limonene on Panonychus citrus

[0036] Cut flat cowpea leaves with a diameter of 5 cm, with the back facing up, spread them flat on the filter paper in a 9 cm plastic petri dish, add a circle of cotton strips around the leaves and humidify. Use a brush to pick up the female adult mites in the oviposition period and transfer them to the leaves. Insert 20 female adult mites on each leaf. Spray the medicine evenly on the leaves in the petri dish with a hand-held sprayer until the slope does not form a water flow. , each agent treated 3 leaves. Cover the petri dish after the treated leaves are naturally dried, and place them in an RXZ incubator (28±1°C, RH 65±5%, 16:8 (L:D)) for cultivation. Investigate the spawning amount in 24h, and calculate the results according to the spawning inhibition rate (%)=(control spawning amount-treatment spawning amount) / control spawning amount×100, see Table 3.

[0037] Table 3 Oviposition inhib...

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PUM

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Abstract

The invention discloses a biological pesticide composition and application of the biological pesticide composition. The composition comprises 10 to 80 parts of D-limonene and 2 to 50 parts of rotenonecalculated in parts by weight. According to the invention, D-limonene is compounded with rotenone, the D-limonene and the rotenone are mixed to have a significant synergistic effect, and the compoundreagent not only has toxic activity on crop spider mites, but also has obvious inhibition on egg production and egg hatching, thereby having excellent comprehensive prevention and control effects onoccurrence and development of crop spider mite populations. In addition, the composition is less in use amount, good in control effect on the mites and difficult in drug resistance for the mites, further safe, environmentally-friendly and easily degraded, readily available in raw materials, simple in preparation process, low in cost, suitable for mass production, and very good in application prospects. The invention not only provides a new way for the development and utilization of the D-limonene and the rotenone, but also provides an environmentally-friendly plant-source reagent for controlling the crop pest mites to reduce the use of chemical pesticides, lower environmental pollution and ensure the quality of agricultural products.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and more specifically relates to a pesticide composition of D-limonene and rotenone and its application in preventing and controlling crop spider mites. Background technique [0002] Spider mite (spider mite) is a herbivorous mite of Tetranychidae (Tetranychidae). appearance, it can also cause severe crop yield reduction or even failure. At present, the common populations of spider mites include Panonychus citrus, Tetranychus urticae, Tetranychus cinnabarinus, Panonychus apple, Tetranychus truncates, and Tetranychus hawthorn, etc., which have a wide range of hosts, hidden damage, large egg production, and rapid reproduction. Fast, every year to cause great losses to agricultural and forestry production. For example, Panonychus citrus, also known as citrus red spider, can parasitize and harm more than 40 kinds of plants in 30 families. It is harmful in citrus orchards all over the world, affe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/90A01N27/00A01P7/02
CPCA01N27/00A01N43/90
Inventor 黄继光张肖肖
Owner SOUTH CHINA AGRI UNIV
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