What is the scientific name of smelly elder sister?

Smelly sister's scientific name is "Toona sinensis", also known as "bug". There is a smelly gland opening at the back of smelly elder sister's body, which will stink when she meets the enemy, that is, the so-called "fart bug" and "smelly girl".

Toona sinensis is a bedbug of Hemiptera, Insecta, Hexapoda and Winged Subclass, and its body color is dark brown. There are a pair of tiny orange-yellow or orange-brown longitudinal spots on the back of the head. Two-thirds of the end of the antenna in the last section is orange-yellow or orange-brown, and some individuals still have orange-yellow or orange-brown spots in the second and third sections There is a sharp thorn on the outer edge of the front chest backboard and a horizontal arc orange-yellow or orange-brown spot in the center. It is a pest that mainly depends on the nutrition and water of melons.

When attacked, fart bugs can release a lot of poisonous fog from the upper abdomen and spray it at the attacker. In order to produce these pulse bombs, the fart bug has a gland that is specially used to store different chemicals. When attacked, they will mix these different chemicals in a pair of combustion chambers. The poisonous fog produced in the combustion chamber is released through the exhaust hole on the exoskeleton, and even accompanied by sound.

The reason why there are so many bedbugs is that after entering the spring, especially in April and May, the rain will increase the air humidity, which provides favorable conditions for the hatching of overwintering eggs and greatly improves their hatching rate. Due to the serious occurrence of blind stinkbug in September, most cotton farmers are unfavorable in prevention and control, resulting in a large egg base, which provides favorable conditions for the occurrence of blind stinkbug. Because the occurrence of blind stinkbug was about 15 ~ 20 days earlier than in previous years, cotton farmers did not prevent it in advance, and the untimely prevention and control was also a reason for the serious harm of blind stinkbug. For many years, cotton farmers used to use high chlorine and other conventional organophosphorus and pyrethroid pesticides to control pests in cotton fields, which made blind stinkbug resistant, and the control effect of organophosphorus and its mixture decreased obviously.

The main prevention and control measures are:

Manual control: kill the egg pieces in time. However, it is found that there is a black ring under the egg cover, which indicates that the egg has been parasitized by parasitic bees, so it should be protected in the field to make it reproduce naturally and increase the number of parasitic bees in the orange orchard.

Biological control: Bactrocera dorsalis is rich in natural enemies, including yellow ants, parasitic bees, mantis and spiders, which should be protected and utilized.

Chemical control: spray 80% dichlorvos emulsion 1000 dilution or 90% trichlorfon crystal 800 ~ 1000 dilution.