CN100413413C - Attractant for Helicoverpa assulta prefect insects - Google Patents

Abstract

An attractant for the adult of Heliothis virescens contains eugenol, phenylmethyl acetate, hexanoic acid, xylene, arylaldehyde or aromatic alcohol, ketone compounds, and assistant proportionally. It is suitable for tobacco field and hot pepper field.

Description

Attractant for Helicoverpa assulta prefect insects

Technical field:

The invention belongs to agricultural technology field, relate in particular to a kind of attractant for Helicoverpa assulta prefect insects.

Background technology:

Tobacco budworm (Helicoverpa assulta) is important pest, can endanger diversified economy crops such as tobacco, capsicum.All need drop into great amount of manpower and material resources every year in China prevents and treats.The main prophylactico-therapeutic measures of adopting at present has: 1. the measure of biotic control of using biologic product such as Bt, nuclear polyhedrosis virus, Avermectin and female worm sex attractant trapping male worm; 2. use the chemical control method that chemical insecticides such as chrysanthemum ester class, organic phosphates are prevented and treated; 3. adopt the physical control of light trap adult in the area easily in power conditions.

Above prophylactico-therapeutic measures has been played certain control action to the harm of tobacco budworm, but has also brought many problems simultaneously.Often can only trap and kill male worm as female worm sex attractant, and the nocturnal moth class male worm has repeatedly mating habit, therefore trapping and killing male worm does not have due control efficiency; Chemical insecticide has wide spectrum, effect such as quick-acting, but the phenomenon of unreasonable use chemical insecticide is very general.The Nicotiana preference is used chemical insecticide and is reduced cigarette quality on the one hand in addition, and problems such as the environmental pollution that causes thus, residue of pesticide, pest resistance to insecticide are also relatively more serious on the other hand; Much local in China, especially remote rural area and hilly country, mountain area, field do not possess the condition that the light trap tool is installed.Therefore, be necessary to seek simple and feasible and safely and effectively tobacco budworm prevent and treat new method.

Summary of the invention:

For seek simple and feasible and safely and effectively tobacco budworm prevent and treat new method, solve the chemical insecticide that uses at present and cause problems such as reducing cigarette quality, environmental pollution, residue of pesticide, pest resistance to insecticide, the purpose of this invention is to provide a kind of attractant that Helicoverpa assulta prefect insects is had attractive activity, smell trapping target adult by volatilization, do not contact crops in the use, to crop and person poultry safety.

Technical scheme of the present invention realizes in the following manner:

A kind of attractant for Helicoverpa assulta prefect insects, it is that raw material volume in 100 parts of attractant preparations is formed umber and is:

Eugenol 0.1～6

Phenylmethyl acetate 0.1～6

Caproic acid 0.1～6

Dimethylbenzene 0.1～6

Aromatic aldehyde or aromatic alcohol compounds 0.1～6

Ketone compounds 0.1～6

The auxiliary agent surplus.

Described aromatic aldehyde or aromatic alcohol compounds are any compound of following volume parts: 3, and 4-dimethylbenzaldehyde, phenmethylol or benzyl carbinol 0.1～6.

Described ketone compounds is any compound of following volume parts: damascenone, oxidation isophorone or solanone 0.1～6.

Described auxiliary agent comprise can and the evenly mixing of above-mentioned each active ingredient, odorlessness and can help the slowly organic substance of release of active ingredient.

The preparation method of attractant

Earlier with each material by volume umber mix, and then mix with auxiliary agent, divide to be filled in the 8ml vial of bore 12mm every bottle of 5ml.Low temperature cooling down is standby.

Good effect of the present invention is:

(1) attractant for Helicoverpa assulta prefect insects is based on the bionical behavior adjusting control agent that Aztec tobacco is developed the smell identification test and odor detection mechanism of odoring substance the attracting action and the insect of Helicoverpa assulta prefect insects, mainly traps and kills female, the male imago of tobacco budworm.

(2) compare with the female pheromone of routine, attractant for Helicoverpa assulta prefect insects has the double characteristics female, male moth that lure.

(3) attractant for Helicoverpa assulta prefect insects can make field ovum amount and larva quantity descend by the trapping adult, and insect is controlled at before the harm, really realizes the purpose of " putting prevention first " in the control of insect.

(4) the attractant for Helicoverpa assulta prefect insects main component all derives from the host plant of insect, nontoxic or low toxicity, and usage amount is little, does not in use contact insect and crop, and insect can not produce resistance, and to crop and Environmental security.

(5) attractant for Helicoverpa assulta prefect insects can be used in crop fields such as tobacco and capsicums.

Embodiment:

The invention will be further described below in conjunction with embodiment:

Below the action effect of attractant different formulations is described in detail, but and do not mean that limitation of the scope of the invention.Table 1 is attractant component and a volume parts embodiment proportioning among the 1-9 embodiment, and table 2 is attractant component and volume parts among the 10-18 embodiment.

Auxiliary agent in table 1 and the table 2 is 3% aqueous agar solution.

Table 1

The field of this attractant lures the moth experiment as follows

Implement the place: Agricultural University Of He'nan science and education garden.

Trapper: the basin of diameter 30cm, add a small amount of washing powder in the water, the attractant bottle is suspended in the basin top apart from water surface 1-2cm place.

Experimental scheme: 4 repetitions, district's group is arranged at random.With the auxiliary agent is contrast, and trapper is 20m at interval.

Investigation method: investigate the tobacco budworm quantity in each trapper every morning.Moth and foreign material in the investigation back cleaning basin, and in time supply moisture.

The field of attractant lures the moth result: the trapping test of preparation example all carries out in experimental field, Agricultural University Of He'nan science and education garden, 4 to 11 September in 2004, on August 1, to 8 days in 2005 was in vega (2 repetitions), capsicum field (1 repetition) in vega (1 repetition), capsicum field (1 repetition) and soybean field (1 repetition) test.Duration of test is not changed attractant.Result of the test sees Table 3 and table 4 respectively.

The accumulative total induced moth number (2004) that table 3 attractant is continuous 8 days

The accumulative total induced moth number (2005) that table 4 attractant is continuous 8 days

By table 3 and table 4 as can be seen, the moth effect that lures of 18 kinds of preparation examples lures collection effect difference owing to component is different, but the trap effect to tobacco budworm all contrasts apparently higher than auxiliary agent, and lure the female borer population amount that collects more, this is to reducing the field ovum amount that falls, and Pest Control had important function before larva is caused harm.Preparation example also has certain attracting action to other moth class, but DeGrain.

Claims (3)

1. attractant for Helicoverpa assulta prefect insects, it is in 100 parts of attractant preparations, the raw material volume is formed umber and is:

Eugenol 0.1～6

Phenylmethyl acetate 0.1～6

Caproic acid 0.1～6

Dimethylbenzene 0.1～6

Aromatic aldehyde or aromatic alcohol compounds 0.1～6

Ketone compounds 0.1～6

The auxiliary agent surplus.

2. attractant for Helicoverpa assulta prefect insects according to claim 1 is characterized in that: described aromatic aldehyde or aromatic alcohol compounds are any compound of following volume parts: 3, and 4-dimethylbenzaldehyde, phenmethylol or benzyl carbinol 0.1～6.

3. attractant for Helicoverpa assulta prefect insects according to claim 1 is characterized in that: described ketone compounds is any compound of following volume parts: damascenone, oxidation isophorone or solanone 0.1～6.