A kind of phyllotreta striolata attractant
Technical field:
The invention belongs to field of pest control, be specifically related to a kind of phyllotreta striolata attractant.
Background technology:
Phyllotreta striolata (Phyllo treta striolata (Fabricius)) belongs to the coleoptera Chrysomelidae, is a kind of worldwide insect of brassicaceous vegetable of causing harm.The brassicaceous vegetables such as main harm radish, Chinese cabbage, leaf mustard, cabbage heart, cabbage mustard all can directly endanger vegetable plant strain adult and two worm attitudes of larva.This worm is annual in the South China, and generation overlap occurs.These Cruciferous vegetables are planted throughout the year, and area under cultivation enlarges year by year, and for recurring of phyllotreta striolata provides abundant food source, that also gives simultaneously this worm has created good environmental conditions continuously in a large number.At present phyllotreta striolata is not also had special effectively preventing method, spray insecticide and remain the upper main Prevention Technique means of producing.
In the face of the phyllotreta striolata serious and unmanageable present situation that causes harm, many researchers carry out a large amount of research from aspects such as biology, ecology and controls.These researchs provide abundant theory and practice data for the control of phyllotreta striolata, it is caused harm, forces down population density and plays an important role for effective control, but also fail to set up a kind of permanently effective system of preventing and treating, reach the control to the continuous and effective of phyllotreta striolata.The situation that the control of phyllotreta striolata relies on chemical agent for a long time continues into the present always.And spraying the series of problems such as food security, environment and ecological pollution that chemical pesticide brings, novel, the safe and effective prophylactico-therapeutic measures that forces people to seek other realizes the Ecological Control to this worm.And the pheromone attractant technology is undoubtedly an ideal selection, the pheromones technology can be used for pest forecast and control, it is a kind of effective means of insect ecological control, also be the important component part of integrated pest management, particularly important in Safe Agricultural Product production and agriculture important insect pest are prevented and reduced natural disasters.Just progressively become the important component part of integrated pest management with natural enemy insect, microorganism formulation and plant insecticide.And; this technology has that selectivity is strong, economical and effective, free from environmental pollution, protection natural enemy, to environment and food security non-resistant problem and with the advantages such as compatibility of other Prevention Technique, will become important component part in the insect ecological control system.
Summary of the invention:
The purpose of this invention is to provide a kind of attractant effect good, phyllotreta striolata is developed immunity to drugs, also free from environmental pollution to the person poultry safety, do not injure natural enemy, harmless, the easy degraded of low toxicity, easy to use, the phyllotreta striolata attractant of environmental protection.
Phyllotreta striolata attractant of the present invention, it is characterized in that, by gross mass mark 100%, formed by following composition, allyl isothiocyanate (allyl isothiocyanate) 30%-40%, suitable-3-is enol ((Z)-3-hexen-1-ol) 39%-54%, citronella oil 10%-15%, rapeseed oil 5% and antioxidant BHT (2,6-toluene di-tert-butyl phenol) 1%.
Described phyllotreta striolata attractant, preferably by gross mass mark 100%, formed by following composition, allyl isothiocyanate (allyl isothiocyanate) 40%, suitable-3-is enol ((Z)-3-hexen-1-ol) 39%, citronella oil 15%, rapeseed oil 5% and BHT(2,6-toluene di-tert-butyl phenol) 1%.
The compound method of phyllotreta striolata attractant of the present invention is: by above-mentioned mass fraction, then above-mentioned each raw material of weighing mixes and namely obtains phyllotreta striolata attractant of the present invention.
Rapeseed oil of the present invention plays the sustained release agent effect in the phyllotreta striolata attractant.
BHT(2 of the present invention, the 6-toluene di-tert-butyl phenol) be antioxidant.
The present invention develops the novel attractant of a kind of phyllotreta striolata according to the smell identification test and odor detection mechanism of insect, and it all has preferably attractive effect to the female male imago of phyllotreta striolata.Its composition of phyllotreta striolata attractant of the present invention is natural and organic ingredients, and does not in use also directly contact insect and crop, therefore insect is developed immunity to drugs, and is also free from environmental pollution to the person poultry safety, do not injure natural enemy.And harmless, the easy degraded of phyllotreta striolata attractant low toxicity of the present invention, easy to use, be easy to industrialization, when its with lure the worm Huang to harden to close use, can be applied to pest forecast and can directly carry out mass trapping again, can be used for the non-environmental pollution control of vegetable-crop pest-insect.
Embodiment:
Following examples are to further specify of the present invention, rather than limitation of the present invention.
Embodiment 1:
According to each component proportioning weighing each component in the described A of table 1, B, C, D, E and six laboratory samples of F, then mix respectively and obtain A, B, C, D, E and six laboratory samples of F.
Table 1: the component of each laboratory sample and proportioning thereof
Testing the used core that lures is a kind of spacetabs type vinyon centrifuge tube.At first with above-mentioned A, B, C, D, E and six samples of F according to the proportioning described in the table 1 and consumption, laboratory sample is quantitatively added in the centrifuge tube, mixing is made and is lured core after the capping, refrigerator low temperature saves backup.
Trapper adopts yellow viscose glue type trapper.
Field trapping test is carried out in the cabbage heart field.All field trials are all carried out in the peak period that the phyllotreta striolata adult occurs.The core that lures that contains laboratory sample is positioned over yellow viscose glue type trapper top 2-3cm.Each is processed in 3 repetitions of deployment, and trapper lures basin to place at random in the field, and every trapper is at a distance of about 10-15m.For every kind of different processing every investigation in 3 days once, change viscose board, statistics lures borer population, changes simultaneously the trapper position and reduces the position to luring the impact of worm effect.Every experimental field and other vegetable fields distance be 50m at least.
Statistical data by experiment, its result is as shown in table 2:
Table 2: the field of laboratory sample lures the worm Contrast on effect
As shown in table 2, field trial shows, phyllotreta striolata attractant of the present invention (laboratory sample of B, C and D) and Huang harden close after, being significantly increased lures the quantity of collection phyllotreta striolata adult, comparing with the yellow plate of independent use has increased the pest trap of 58.4%-82.2% quantity.Wherein, the synergistic effect Analysis of variance to yellow plate trapping does not reach significant difference between C, two kinds of different formulations pheromones of the D lure.It is 84.3 ± 10.0/plate that laboratory sample A group lures collection worm amount, use separately 71.3 ± 4.5/plate of yellow trap quantity to compare with F group, certain collection synergistic effect that lures arranged, and E group and F group separately the yellow plate of use compare, lure the worm effect close, illustrate thus that rapeseed oil does not have significantly to lure the worm effect.Simultaneously, three groups of attractant effects of B, C and D are than A, E and F group, and trapping pests quantity increases significantly, and illustrate that thus scientific composition of the present invention lures collection flea beetle adult to have obvious synergistic effect to yellow plate.
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improvement and conversion all should belong to the protection domain of claims of the present invention.