The cute "sugar treasure" in The Flower Thousand Bones is actually a pest on garden plants!

I believe that friends who have seen Hua Qianbone will remember the cute and loyal little bug sugar treasure inside, but do you know? Sugar treasure is real in real life, today let's understand the real version of sugar treasure!

Sugar treasure, that is, citrus butterfly, also known as pepper butterfly, yellow butterfly and so on. It belongs to lepidoptera, Butterfly family. Most species are based on the peppercorns, citrus, mountain peppers, etc. of the rue family, and the main larvae are mainly larvae in the garden, which affects the ornamental value and causes economic losses. When the insect population density is large, the whole plant or the leaves can be eaten, which seriously affects the growth, flowering and fruit of the plant.

Morphological characteristics

Larval stage

The larvae are about 45 mm long, yellow-green, with eye spots on both sides of the dorsal back of the posterior thorax, blue-black bands between the posterior chest and the first abdominal segment, 1 black twill on each side of the 4th and 5th segments of the abdomen extends to the back of the 5th and 6th segments respectively, and each body has a white spot odorous gland horn orange yellow at the lower line of the throttle valve, and the 1st instar larva is black and has many spines; The 2-4 year larvae are black-brown with white diagonal stripes and resemble bird droppings. There are more fleshy protrusions on the body.

Adult stage

The forewings are black nearly triangular, with 8 yellow crescent spots near the outer margin, 8 small tapering maculas in the center of the wing from the terior edge to the posterior margin, 4 radial yellow longitudinal stripes in the basal half of the middle chamber, and 2 yellow crescent spots at the end half. Hindwings black; There are 6 crescent maculas near the outer margin and 8 maculas at the base; There is an orange-yellow round spot at the hip angle, with a black spot in the center of the spot, and a caudal process.

Distribution and hazards

It is distributed almost all over the country. Harmful citrus, kumquat, lemon, bergamot, peppercorns, yellow pineapples, etc. Larvae feed on young shoots and leaves, and are common butterflies in gardens.

Habits of life

The algebra occurs in different places, two generations occur in the northeast a year, 3 to 4 generations a year in the Yangtze River Basin and the areas south of it, and 5 generations in 1 year in Taiwan. Taking pupae hanging on branches for winter, taking the 3rd generation as an example, adult insects appear in April of the following year, the first generation of larvae in early May, the second generation of larvae from mid-July to mid-August, and the third generation of larvae from early September to October. There is generational overlap. Adults are active during the day and the eggs are laid individually on young leaves and branches. The hatching larvae are brown and resemble guano. When the larvae mature, they spit silk around the substrate to pupate. Adult insects have different colors in spring and summer.

Prevention and control measures

1. Manually remove the overwintering pupae and pay attention to protecting natural enemies.

2. Combined with pruning management of flowers and trees, artificial egg collection, killing larvae or pupae.

3. When there are many medicinal pests, 90% of the dichlorvos 80% of the dichlorvos 1000 times liquid, or 2.5% cypermethrin or 2.5% kung fu 3000-4000 times liquid can be used for prevention and control.

4, the protection of natural enemies citrus butterfly natural enemies such as wind butterfly golden bee, phoenix butterfly red-eyed bee and large leg wasp and other eggs or pupae parasitic bees should be well protected and utilized.