Recommended product: kalomon rice leaf roller sexual attractant
Rice leaf roller is one of the main pests in rice producing areas of China, which is widely distributed in all rice areas. In addition to harming rice, it can also feed on barley, wheat, sugarcane, millet and other crops, as well as weeds such as barnyard grass, Li's grass, paspalum, paspalum bicolor, horse Tang, Setaria grass, cricket grass, thatch grass and reed. It damages rice with larvae and leaves into vertical bracts. It hides in them to feed on the upper epidermis and mesophyll, leaving only the white lower epidermis. The damage at seedling stage affects the normal growth of rice, and even withers and dies; From tillering stage to jointing stage, tillers were reduced, plants were shortened, and growth period was delayed; After booting, especially from heading to full heading, flag leaves were damaged, affecting flowering and fruiting, increasing empty shell rate and decreasing 1000 grain weight.

Bisexual attractant (special for rice leaf roll borer) continuously releases high concentration of plant-based aromatic substances and insect pheromone attractants by using rubber tubes as a slow-release carrier, and efficiently attracts male and female adults of rice leaf roll borer. The components of the product are food grade raw materials and do not contain any pesticide ingredients. It is an ideal high-tech product for physical control. This product has superior attraction effect, and has the advantages of androgynous attraction, long-lasting slow release, cost saving, labor saving, safety and environmental protection.

Target crop
Rice, barley, wheat, sugar cane, reed.
usage method
It is used in conjunction with matching traps. A lure core is placed in each trap, and the dosage varies according to the purpose of use. For pest monitoring, use 3-5 for each monitoring point. For pest prevention and control, use 2-5 per mu, and coordinate with other prevention and control measures. And change the attractant according to the duration of the attractant.

Product advantages
1. Duration: about 60 days;
2. Resistance management: target pests will not develop resistance to drugs;
3. Green environmental protection: environmentally friendly, safe for agricultural products, and pollution-free for soil;
4. Prevention and control of no blind areas: rely on pheromones to cover the air in an all-round and three-dimensional way to prevent and control no blind areas;
5. Reduce the use of chemical pesticides: when used for prevention and control, it can control the development of pest population, reduce the use of chemical pesticides, reduce the safety and export risks of agricultural products caused by pesticide residues, and improve the brand and commercial value of agricultural products by cooperating with new moth traps.
6. The matching trap has high light transmittance, fast odor transmission, large capacity and easy installation: the special new moth trap uses high transparent materials with high light transmittance, which conforms to the habits of pests and is convenient for trapping pests. At the same time, the high light transmittance is also convenient for observing the amount of insects during monitoring; The special grid shaped insect trap mouth is more conducive to the spread of the smell of the lure core; The cylindrical trap barrel and inverted funnel-shaped trap mouth can trap a large number of adult rice leaf roller; The assembly is simple, easy to install and disassemble, saves a lot of manpower and material resources, and the trap can be reused.

Matters needing attention
1. This product can be used for monitoring the adult of rice leaf roller and as a control method;
2. In areas with relatively low temperature, the duration of the sexual attractant of rice leaf roller will be relatively prolonged; In areas with relatively high temperature, the duration of the bisexual attractant of rice leaf roller will also shorten with the increase of temperature. Please check and replace the attractant in time.

Tips on pest knowledge of rice leaf roller

Morphological character
Adult: yellowish brown, body length 8 ~ 9mm, wing span about 18mm. The front wing is nearly triangular, with dark brown bands on the outer edge, black brown inner and outer horizontal lines, and a black brown short horizontal line connected to the front edge between the two lines. The male moth has a tuft of dark brown hair near the front edge of this short horizontal line; The inner horizontal line of the rear wing is short, the outer horizontal line reaches the rear edge, and the dark brown band on the outer edge is the same as that of the front wing; At rest, the male moth's tail often tilts upward, while the female moth's tail is straight.

Egg: oval, flat; It is white at first birth and then turns pale yellow. Black spots will be seen when hatching.

Larva: the mature larva is 14-19mm long, with 5 instars in general and 6 instars in a few. The body color changes from light yellowish green to yellowish green, and will turn orange red when it is ripe..

Damage characteristics
1. The newly hatched ~ 2nd instar larvae feed on the heart leaves to form white spots or thin strips, which mainly harm the inner side of the leaf sheath.

2. The 2nd instar larvae ~ 3rd instar larvae bear bracts at the leaf tips.

3. The 3rd instar larvae ~ 4th instar larvae enter the stage of gluttony and form stripes

4. The 4th instar larvae ~ 5th instar larvae change packages for feeding

Living habits
1. Migratory: rice leaf roller is a migratory pest. Every year, it migrates from south to North from Southeast Asia, Hainan Island and other places with the southerly wind or typhoon in early spring.
2. Old age and drug resistance: before the 2nd instar, the larvae of rice leaf roller do little harm, do not like to move, and are easy to kill. After the 2nd instar, the leaves are eaten white, the food intake increases sharply, and the drug resistance increases.
3. Multiple peaks: there are often 2-3 moth peaks in a generation of rice leaf roller, separated by 5-7 days or as long as 10 days. So that generations overlap seriously.
4. During the day, the larvae hide in the bracts to feed on the mesophyll, and go out in the morning and evening in wet or dew and rainy days. The larvae have a strong green tendency; Adults have strong chemotaxis but poor phototaxis.

Prevention and control measures
① Agricultural control measures
A. Weed removal in the field
B. Select excellent insect resistant varieties and strengthen fertilizer and water management.  
② Physical trapping measures
A. The sexual inducer of rice leaf roller was used in combination with trap to trap and kill adults.
B. The male and female adults of rice leaf roller were entrapped and killed by the bisexual attractant combined with the trap.
C. Black light lamp traps and kills adults.  
③ Chemical control measures
Adhere to the pharmaceutical control strategy of "treating early and treating small", and control from the peak of egg incubation to the peak of the first and second instar larvae.
Single agent or compound agent such as chlorpyrifos benzamide, fipronamide, indazocarb, chlorpyrifos, propyl bromide, Daofeng powder, abamectin, carbaryl salt, and carbazide can be selected.
④ Biological control measures
A. At the peak of larval hatching, Bacillus thuringiensis (BT) wettable powder was used for spray.
B. Trichogramma was released in batches from the beginning of adult to the peak of spawning.
C. In the early stage of rice growth, when the occurrence of rice leaf roller is below the medium level, the special strain of BT borer and biological pesticides such as beet armyworm nuclear polyhedrosis virus • BT should be promoted.