Application of Arabic gum component-containing yeast in feeding of Olin Bayesian mites and predatory mites and removal of Olin Bayesian mites and predatory mites

Abstract

The invention relates to application of a yeast containing Arabic gum component in feeding of Olin Bayesian mites and predatory mites and a breaking method of the Olin Bayesian mites and the predatory mites. The method is characterized in that high-efficiency feeding of the Olin mites can be realized by utilizing yeast containing Arabic gum, but the fed Olin mites are not beneficial to the high-efficiency production of the predatory mites, so that the high-efficiency production of the predatory mites cannot be realized; yeast just containing Arabic gum plays a role in inhibiting and limiting production of the predatory mites, and even leads to absolutely species of the predatory mites is applied to feeding of the Olin Bayesian mites and the predatory mites. The invention not only provides a method capable of limiting and removing the predatory mites without influencing mass feeding of the Olin Bayesian mites, but also provides a solution for solving the problems caused by the fact that the Olin Bayesian mites fed by the yeast containing the Arabic gum component are not beneficial to the production of the predatory mites. The invention mainly aims to provide a brand new thought and scheme for biological control of pests and pesticide reduction or avoid unnecessary loss of related enterprises.

Description

Technical Field

[0001] The present invention relates to the application and elimination method of yeast containing gum arabic in the feeding of Oligota bissetii and predatory mites, and belongs to the field of biological control of agricultural pests. Background Art

[0002] Yeast is an essential food for feeding Oligota bissetii (Patent Application No. 201410143238.X), and various predatory mites can be fed by using Oligota bissetii.

[0003] Some of the yeast sold on the market indicates that it contains gum arabic on the outer package, while some does not. Practice has proved that whether it contains gum arabic or not, large-scale propagation of Oligota bissetii can be achieved, and highly efficient production of predatory mites can be realized by using the Oligota bissetii fed with yeast. However, we found that although the yeast containing gum arabic can be used to raise a large number of Oligota bissetii, when the predatory mites are introduced into the relevant Oligota bissetii, it is found that the predatory mites gradually die in large numbers significantly, and finally the production stops.

[0004] Based on the actual production application, when feeding Oligota bissetii, it is often easily contaminated by predatory mites. Once contaminated, it will affect the propagation speed and purity of the Oligota bissetii population. In order to solve the problem of predatory mite contamination in Oligota bissetii and combine gum arabic with Oligota bissetii and predatory mites to better apply in production practice, relevant solutions need to be proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide the application and elimination method of yeast containing gum arabic in the feeding of Oligota bissetii and predatory mites. The invention applies the major discovery that "using yeast containing gum arabic can achieve efficient feeding of Oligota bissetii, but the Oligota bissetii fed is not conducive to and cannot achieve the efficient production of predatory mites. Exactly, the yeast containing gum arabic plays an inhibitory and restrictive role in the production of predatory mites, and even leads to the extinction of predatory mites" to the feeding of Oligota bissetii and predatory mites.

[0006] The specific operation is to add the yeast containing gum arabic to the Oligota bissetii containing predatory mites, and raise them for 10 - 30 days under the conditions of temperature 20°C - 30°C and humidity 60% - 95%. During this period, add the yeast containing gum arabic at least once a week, and the addition amount is ≥0.1 g of yeast per 1000 Oligota bissetii, so as to achieve the inhibitory, restrictive and elimination effects on the predatory mites in the Oligota bissetii, and finally achieve the purification of the Oligota bissetii.

[0007] The term "breaking" refers to solving the problem that the feeding of **Ollienus bakeri** with yeast containing gum arabic is not conducive to the production of predatory mites. The specific operation is as follows: First, stop using yeast containing gum arabic. Second, replace it with yeast without gum arabic, and raise **Ollienus bakeri** for more than 2 generations or more than 20 days under the conditions of temperature 20°C - 30°C and humidity 60% - 95% before it can be used for the feeding of predatory mites; or use the previous **Ollienus bakeri** containing gum arabic as the seed source, expand more breeding containers, add more feed without gum arabic yeast for dilution, with the addition amount of ≥0.1 g yeast per 1000 **Ollienus bakeri**, and raise **Ollienus bakeri** for more than 2 generations or more than 20 days under the conditions of temperature 20°C - 30°C and humidity 60% - 95% before it can be used for the feeding of predatory mites.

[0008] The present invention not only first proposes a method that can limit and eliminate predatory mites while not affecting the large-scale feeding of **Ollienus bakeri**, but also proposes a solution to break the problem that the feeding of **Ollienus bakeri** with yeast containing gum arabic is not conducive to the production of predatory mites.

[0009] In addition to the above advantages, it is emphasized that not all yeasts are suitable for the production of **Ollienus bakeri** and predatory mites. Using yeast with gum arabic will cause problems in the population growth of predatory mites. Especially, long-term feeding of flour mites with pure yeast containing gum arabic will lead to the extinction of predatory mites, and it can put forward main suggestions for the production of predatory mites using **Ollienus bakeri**. This may be because the gum arabic component does not cause the death of flour mites, but predatory mites will have digestive problems after feeding on flour mites containing gum arabic. Specific Embodiments

[0010] The following methods are only examples of the embodiments of the claims and the invention content, and do not represent the limitation of the present claims and invention content.

[0011] Example 1 A method for removing **Neoseiulus barkeri** or **Neoseiulus californicus** from **Ollienus bakeri**

[0012] The specific operation is to add yeast containing gum arabic to **Ollienus bakeri** containing **Neoseiulus barkeri** or **Neoseiulus californicus**, and raise them at a temperature of 25°C and a humidity of 85% for 15 days. Add yeast containing gum arabic once a week in the middle, with the addition amount of 1 g yeast per 1000 **Ollienus bakeri**, and the death of **Neoseiulus barkeri** or **Neoseiulus californicus** will occur. After that, as time goes by, the population of **Neoseiulus barkeri** or **Neoseiulus californicus** will not only not grow but will gradually become extinct.

[0013] Example 2 A method for breaking the problem that the feeding of **Ollienus bakeri** with yeast containing gum arabic is not conducive to the production of **Neoseiulus barkeri** or **Neoseiulus californicus**

[0014] Using the existing Oligota bakeri as the source of breeding, evenly expand and breed it into 5 equal-sized rearing containers, and then add yeast without gum arabic component for rearing. The addition amount is 0.1 gram of yeast per 1000 Oligota bakeri. After rearing Oligota bakeri for 20 days under the conditions of temperature 25°C and humidity 85%, it can be used for the rearing of predatory mites.

Claims

1. The application and elimination of yeast containing gum arabic in the breeding of Olina bernicola and predatory mites, which is characterized by: Yeast containing gum arabic ingredients is added to Olin bei's mites containing predatory mites, and the mites are raised at a temperature of 20°C-30°C and a humidity of 60%-95% for 10-30 days. Yeast containing gum arabic ingredients is added at least once a week during the period, and the addition amount is ≥0.1 grams of yeast per 1000 Olin bei's mites. The predatory mites in Olin bei's mites can be inhibited, restricted, and removed, and the Olin bei's mites can be purified eventually. The elimination refers to eliminating the problem that Olin bei's mites raised with yeast containing gum arabic ingredients are not conducive to the production of predatory mites. The specific operation is to first eliminate the yeast containing gum arabic ingredients. Continue to use it, and then replace it with yeast that does not contain gum arabic ingredients, and raise O. benzaefolia mites for more than 2 generations or more than 20 days at a temperature of 20℃-30℃ and a humidity of 60%-95% before it can be used for the breeding of predatory mites; or use the O. benzaefolia mites containing gum arabic ingredients in the past as a seed source, expand more breeding containers, add more feed that does not contain gum arabic yeast for dilution, the added amount is ≥0.1 grams of yeast per 1,000 O. benzaefolia mites, and raise O. benzaefolia mites for more than 2 generations or more than 20 days at a temperature of 20℃-30℃ and a humidity of 60%-95% before it can be used for the breeding of predatory mites.