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Conopomorpha sinensis Bradley forecasting method

A litchi pedicle borer and litchi technology, applied in the field of pest prediction and forecasting, can solve the problems of short prediction time span, difficulty in collecting insect body samples, and increase the prediction time span, so as to increase the prediction time span, save time, and increase the prediction time Effect

Active Publication Date: 2014-12-24
PLANT PROTECTION RES INST OF GUANGDONG ACADEMY OF AGRI SCI
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a brand-new method for predicting and forecasting litchi pedicle moths in order to overcome the problems of short prediction time span and difficulty in collecting worm body samples in the existing litchi pedicle borer prediction technology. Estimate the occurrence period of adults, increase the time span of prediction, and reduce the difficulty of collecting insect samples, save labor and time, and greatly improve the efficiency of prediction and forecasting

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Embodiment 1

[0021] Embodiment 1: Determination of instars and age-grading standards of litchi pedicle borer larvae

[0022] The number of instars and the age classification standard of litchi pedicle borer larvae are one of the basic data required by the present invention. Without this set of basic data, the number of pedicle borer larvae cannot be counted according to different ages, and the main insect state cannot be determined, so that the adult occurrence period cannot be estimated from larvae. Regarding the number of instars of litchi pedicle moth larvae, it was first proposed by He Heping (1986) that according to the width of the larval head shell, the larvae are divided into 4 instars (How Equal, Journal of South China Agricultural University, Vol.7.NO.1, pp43 -53, 1086). Huang Zhensheng et al. (1989) also believed that the larvae of the litchi pedicle borer were divided into 4 instars, and measured the head shell width of the 1st to 4th instar larvae. The instar larvae are 0.66...

Embodiment 2

[0030] Example 2: Determination of the developmental period of each instar larvae of litchi pedicle borer under different temperature conditions

[0031] The development period of each instar larvae of litchi pedicle borer under different temperature conditions is another set of basic data required by the present invention. Without this set of basic data, when estimating the peak period of adults, the data cannot be substituted into the calculation, and the calculation is out of the question. To this end, we determined the developmental duration of each instar larvae of the litchi pedicle borer at 14 to 38°C. Methods as below:

[0032] S1. Determination of egg stage of litchi pedicle borer under different temperature conditions

[0033] For the constant temperature test, 9 temperature gradients were set: 14, 17, 20, 23, 26, 29, 32, 35 and 38°C. After the lychee pedicle moth becomes a moth and lays eggs, the egg card is put into a petri dish, and each petri dish has 30 eggs....

Embodiment 3

[0058] In order to verify the application effect of the present invention, we simultaneously use the following two methods to predict the peak period of litchi pedicle borer adults in the same orchard. Among them, method 1 is a method developed by predecessors, that is, a pupation progress prediction method, and method 2 is the method of the present invention. The specific operation steps are as follows:

[0059] Method 1: During the mid-term fruit drop period, collect fallen lychee fruit from the litchi orchard at Baiyun Base, Zhongluotan Town, Baiyun District, Guangzhou, bring them back indoors, place them on a plastic square tray, and spread them in a single layer to avoid overlapping of fallen fruits. Cut the B-type corrugated paper to a suitable size and completely cover the square plate. Change the corrugated paper every day and record the number of pre-pupae and pupae of the pedicle moth on the corrugated paper until no larvae pupate. Then, calculate the pupation rate...

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Abstract

The invention discloses a Conopomorpha sinensis Bradley forecasting method and solves the problems of the prior art that the forecasting time span is short and insect samples are hard to collect. The Conopomorpha sinensis Bradley forecasting method includes studying larva ages, maturing standard and developmental duration of the larva at different ages under different temperatures; calculating suitable control data for the Conopomorpha sinensis Bradley from the larva stage. In this way, the forecasting time span is expanded, the conventional method that the suitable control data only can be calculated from pupa stage is changed, the insect samples are easy to collect, and forecasting efficiency is greatly improved.

Description

Technical field: [0001] The invention belongs to the technical field of pest prediction and forecasting, and in particular relates to a method for predicting and forecasting litchi pedicle moths. Background technique: [0002] Litchi pedicle borer (Conopomorpha sinensis Bradley) is the number one pest in litchi and longan industry in my country. It causes damage by larvae boring fruit and is one of the main factors affecting the high and stable yield of litchi and longan. This insect is also the object of "zero tolerance" control of litchi fruit. It reproduces quickly, occurs in a wide range, and is difficult to control. The damage of the insect body is hidden. Once the larvae enter the fruit, there are no feasible measures to control it. Therefore, it is one of the key technologies for the safe production of litchi to predict the occurrence period of litchi borer pedicle adults through forecasting, that is, the appropriate control period, reduce the number of medications, a...

Claims

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Application Information

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IPC IPC(8): G06F19/00A01G13/00
Inventor 董易之陈炳旭徐淑陈凯歌姚琼陈耿民
Owner PLANT PROTECTION RES INST OF GUANGDONG ACADEMY OF AGRI SCI
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