CN105028092A - Method for preventing and controlling citrus bud gall midge - Google Patents

Abstract

The invention provides a method for preventing and controlling citrus bud gall midge. The method includes the following steps of firstly, conducting agricultural control, wherein orchard cleaning and fertilizer applying are conducted in winter, and a surface soil layer is turned over by 4 cm to 6 cm deep; secondly, conducting physical control, wherein frequency-vibrancy pest-killing lamps are arranged in an orchard to induce and kill adult pests, and in addition, 20 to 40 yellow pest sticky traps are hung per mu; thirdly, spraying pesticide on the ground, wherein pesticide is sprayed on the ground before overwintering generation adult pests get out of soil or at the early period after larvas enter soil, 2 kg of cadusafos granules with concentration of 10% and fine soil are mixed and then sprayed on the ground per mu, or pesticide is sprayed on the ground, and 2 kg of cadusafos granules with concentration of 10% are consumed per mu; fourthly, spraying pesticide on tree crowns, wherein 1000-fold dichlorvos emulsifiable concentrates with concentration of 80% and 3000-fold abamectin emulsifiable concentrates with concentration of 1.8% are instantly sprayed on tree crowns in the adult pest initial appearing period, namely, the germination period, in early spring for the first time and sprayed 7 to 10 days later for the second time. By means of the method, citrus bud gall midge can be reduced by 86% or more.

Description

The prevention and controls of a kind of citrus contarinia

Technical field

The present invention relates to the prevention and controls of a kind of citrus contarinia.

Background technology

Cumquat is also known as golden jujube, golden mandarin orange.Evergreen shrubs.High 3 meters, generally tool does not sting, and sprig is green, and during nutritional sufficiency, branch is many; Leaf lanceolar to oblong, 5-9 centimeter length, Quan Yuan, petiole is wing slightly; Spend little, white, fragrance, 1-3 armpit is raw, petal 5, stamen 20-25, ovary 5 Room; Fruit ellipse or obovate, long 2.5-3.5 centimetre, golden yellow; Genus Japan's cumquat (F.japonica) that fruit is spherical.

Cumquat former distribution coastal area of southeastern China each province, particularly In Guangdong Province, planting and eat the with the longest history of golden mandarin orange, is the township of genuine cumquat.South China and the middle and lower reach of Yangtze River are also widely cultivated in addition.Appreciate its leaf flower, really, or aim at and produce fruit and make tangerine cake person, potted plant rear precision management, breeding grafting, stock trifoliate orange or Citrus seedling.One strain can tie the golden yellow little tangerine of more than 10, and the joyous New Year's Day generally exports Hongkong, welcomes by Hong Kong native very much.Its medical value is higher.

Citrus contarinia Contariniasp, belonging to diptera Cecidomyiidae, is the insect endangering Citrus young shoot specially, and occurred in 1 year 4 generations, the county is heavier to cause harm for 3 ~ May.Lay eggs on the tender shoots of not opening.Newly hatched larvae pierces tender shoots and causes harm, and killed bud is insect gall shape, and vanelets is curling, or young shoot shortens little goiter and tumor into, or petiolule expands in warty, and part of damage look lighter.In recent years, cumquat cultivated area increases year by year, and the harm citrus contarinia occurring area of cumquat, occurrence degree also increase and seriously accordingly.Citrus contarinia has a strong impact on growing way and the output of cumquat, and the control of citrus contarinia is also just most important.。

Summary of the invention

The invention provides the prevention and controls of a kind of citrus contarinia.

The invention provides the prevention and controls of a kind of citrus contarinia, step is as follows:

(1), cultural control: clear up orchard in conjunction with winter, winter applies fertilizer, and turn over topsoil 4-6cm;

(2), physical control: arrange in orchard to place frequency ventilating type insecticidal lamp trapping adult, every mu of hanging 20-40 opens yellow sticky trap in addition;

(3), ground spreads pesticides: before winter generation adult is unearthed or at the beginning of larva buries, spread pesticides on ground, and every mu of use 10% Rugby granular 2kg adds after fine earth mixes and is spread on ground, or at ground spray medicament; Every mu of consumption of medicament is: 10% Rugby granular 2kg;

(4), cover spray: adult in early spring first current (i.e. budding period) sprays 80% DDT EC, 1000 times of liquid to tree crown immediately, and 1.8% abamectin emulsifiable concentrate 3000 times liquid, sprayed 1 time again every 7-10 days.

Apply method of the present invention and can reduce citrus contarinia more than 86%.

Embodiment

Following embodiment is convenient to understand the present invention better, but does not limit the present invention.Experimental technique in following embodiment, if no special instructions, is conventional method.Material used in following embodiment, if no special instructions, is commercially available.

embodiment 1

Control citrus contarinia, should follow the plant protection policy of " put prevention first, integrated control ".Based on Healthy culture, play the control action of kumkwat mandarin tree self-compensation situation ability and natural enemy, improve orchard environment, reasonable employment agricultural chemicals, preferentially select biologic product and efficient, low toxicity, low-residual medicament, forbid to use high poison, persistent pesticide, improve pesticide application technology, by the Risk health behavior of citrus contarinia below index for control.

The prevention and controls step of a kind of citrus contarinia of the present invention is as follows:

1, cultural control: clear up orchard in conjunction with winter, winter applies fertilizer, and turn over topsoil about 5cm, destroys worm pupa and survives the winter, reduce worm in next year source radix;

2, physical control: orchard arrange frequency ventilating type insecticidal lamp trapping adult, with a frequency ventilating type insecticidal lamp can pipe 30 mu of areas kill adult effect calculate arrange place, in addition every mu hanging 20-40 open yellow sticky trap to trap and kill adult;

3, spread pesticides in ground: (i.e. bud withered or bud rotten initial stage) at the beginning of before winter generation adult is unearthed, (namely before cumquat rudiment) or larva bury, spread pesticides on ground, reduce or kill worm of lower generation source, after every mu of use 10% Rugby granular 2kg adds fine earth mixing, being spread on ground, or at ground spray medicament; Every mu of consumption of medicament is: 10% Rugby granular 2kg;

4, cover spray: adult in early spring first current (i.e. budding period) sprays 80% DDT EC, 1000 times of liquid to tree crown immediately, and 1.8% abamectin emulsifiable concentrate 3000 times liquid, sprayed 1 time again every 7-10 days, can protect young shoot.

Apply method of the present invention and can reduce citrus contarinia more than 86%.

Last it is noted that the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment to invention has been detailed description, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (1)

1. a prevention and controls for citrus contarinia, is characterized in that: step is as follows:

(1), cultural control: clear up orchard in conjunction with winter, winter applies fertilizer, and turn over topsoil 4-6cm;

(2), physical control: arrange in orchard to place frequency ventilating type insecticidal lamp trapping adult, every mu of hanging 20-40 opens yellow sticky trap in addition;

(3), ground spreads pesticides: before winter generation adult is unearthed or at the beginning of larva buries, spread pesticides on ground, and every mu of use 10% Rugby granular 2kg adds after fine earth mixes and is spread on ground, or at ground spray medicament; Every mu of consumption of medicament is: 10% Rugby granular 2kg;

(4), cover spray: adult in early spring first current (i.e. budding period) sprays 80% DDT EC, 1000 times of liquid to tree crown immediately, and 1.8% abamectin emulsifiable concentrate 3000 times liquid, sprayed 1 time again every 7-10 days.