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Are stink bugs beneficial insects or pests? Uncovering the origin of the name "stink ladybug"
Stink bugs, about the size of a woman's fingernail, uniformly dark brown, are called stink bugs, fart bugs, poop bugs, or "stink ladybugs" because they release a foul odor. So are they beneficial insects or pests? According to agricultural records, stink bugs are a general term for a class of insects with abnormally variable wings, with over 30,000 species, of which more than 90% are pests. However, insects also have a beneficial side. Beneficial species include predatory stink bugs that feed on small insects and benefit agriculture, the medicinal jiuxiang bug, the edible guihua cicada, and the field giant water bug and pine algae bug that specifically prey on juvenile fish and harm the aquaculture industry. <p style="text-align: center;"><span style="line-height:1.6; text-indent:2em"></span></p> <p style="text-indent:2em;">Most stink bug species are pests. In the cotton region of the Yellow River basin, 3-5 generations occur each year, overwintering as eggs in dead branches and stubble of alfalfa, broad bean, pomegranate, apple, etc., as well as in dead cotton branches and boll shells. They hatch in early to mid-April and emerge as adults in late April. Mid-June to mid-July is the peak damage period. Adults are phototactic, lay more eggs in densely growing cotton fields, and prefer high temperatures and rain. Temperatures of 25°C-30°C and relative humidity above 80% are suitable for egg hatching and reproduction, and cotton fields near alfalfa plots, green manure fields, or with many weeds suffer the most severe damage.</p> <p style="text-indent:2em;">In the suburbs of Beijing, stink ladybugs mainly harm fruit trees such as pear, peach, and apple, with damage rates generally around 15% to 25%, and fruit damage rates as high as over 70%, turning the fruit into “monkey-head peaches” and “pear lumps” that taste bitter and lose their food value. In urban areas, stink ladybugs harm various landscaping trees and flowers such as willow, elm, mulberry, poplar, pagoda tree, eucommia, paulownia, and pomegranate. They suck the sap of flower buds, petals, leaves, tender leaves, and fruits, greatly reducing the effectiveness of landscaping and beautification.</p> <p style="text-indent:2em;">To control stink ladybugs, you can concentrate on trapping and killing them when they overwinter; in early spring, take measures such as plugging tree holes and scraping off old bark; at noon in summer, gently shake the tree trunk by hand and promptly kill the stink ladybugs after they fall to the ground; in addition, control should be carried out during the nymph stage of stink ladybugs, because during this period they can only crawl and cannot fly. At present, the use of the stink bug's natural enemy, the stink bug egg parasite wasp, for biological control of stink ladybugs at the forestry biological control center has entered the experimental stage. Field surveys show that the stink bug egg parasite wasp has a high parasitism rate on stink bug eggs, with an average parasitism rate of 47.22% on tea-winged stink bug eggs and 30.56% on pear stink bug eggs, making it a natural nemesis of stink ladybugs.</p> <p style="text-indent:2em;">The rice stink bug egg parasite wasp parasitizes rice brown stink bug eggs, singly. In a July 1957 survey of rice fields in Hangzhou, Zhejiang, up to 97.1% of rice brown stink bug eggs were parasitized by black egg wasps, of which this species accounted for 94.2% and the rice stink bug small black egg wasp for 2.9%. The sex ratio of this species was 81.54%. According to another survey in Wangcheng, Hunan, of the 67.24% parasitism rate of rice brown stink bug eggs, this species accounted for 41.75% (Zhou Renlian, 1955). Parasitized eggs appear black before emergence and light yellow after emergence. The emergence hole is on the top surface of the egg, irregularly circular, with an uneven cut edge and strip-like debris connected to the rim of the hole. Creamy egg contents remain on both sides inside the egg. Adult wasps mate immediately after emergence, and the time is extremely short, only 3-5 seconds. When laying eggs, they constantly use their antennae to explore above and to the sides of the egg, and always insert eggs from the side. Laying one egg takes about 30 seconds; after laying, they move slightly and then lay eggs on another host. When reared by introducing fresh stink bug eggs, the period from egg laying to emergence is 7 days, with an average of 22 offspring wasps. Adult wasps live 4 days, and if supplied with diluted honey solution, this can be extended to 20-22 days.</p>
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What does "donkey meat is fragrant, horse meat is stinky" mean, and why don't Chinese people eat horse meat?
In rural areas there is a saying: "donkey meat is fragrant, horse meat is stinky, and you wouldn't eat mule meat even if you were beaten to death." This saying means that donkey meat is very tasty, while horse meat and mule meat are relatively harder to eat. Some people are very curious: overall there are more horses than donkeys, so why do people rarely eat horse
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From Stinky Ditch Weed to Potted Plant: How Dad Went from Being Called Foolish to Being Envied by the Neighbors
Dad loves puttering around with plants and flowers at home whenever he has free time, and all the potted plants in the house were planted by his own hands. A while back, he brought home a bunch of smelly wild weeds from outside, and the whole family turned their noses up at them, saying he had lost his mind. ...
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How many of these distinctive foods from Xiangcheng in Linyi have you tried: stinky mandarin fish, maodan (balut), and silkworm cocoons?
1. Stinky mandarin fish: although the fish smells a bit stinky, the meat is very tender and the taste is great! 2. Shaobing (baked flatbread): a leavened flatbread baked over charcoal, and as soon as it arrives you smell a very rich aroma. The bread is soft and tasty, with slightly crisp edges. 3. Silkworm...
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The succulent smelled like stinky feet as soon as I bought it, and the whole family told me to throw it away
The fragrance of flowers is intoxicating, and some grasses also carry a scent, but did you know that succulents can have fragrances too? Not only are there fragrant ones, there are also stinky ones! Haha, let's get to know them quickly, otherwise if you pick a "stinky" succulent and bring it home in the future, don't blame Huahua for not telling you!
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The succulent had a stinky-feet smell as soon as I brought it home, and the whole family told me to throw it out
Yanghua Daquan WeChat subscription account, click to follow, Huahua teaches you how to grow flowers! The fragrance of flowers is intoxicating, and some grasses also carry a scent, but did you know that succulents can have a fragrance too? Not only are there fragrant ones, there are also stinky ones! Haha, hurry up and get to know them...
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Pothos Almost Died, Thrown into a Stinky Ditch, Then Went Wild and Grew Everywhere in Half a Month While Neighbors Lined Up to Grab Some
What Huahua hears complained about most every day is pothos. Many plant lovers just throw it away when they can't grow it well, and then want to buy it again after tossing it... Today I saw pothos thrown away by a plant lover, and it actually grew into a whole patch in a stinky ditch. It really makes you not know whether to laugh or cry! Plant lover @Impossible to work...
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How foul-smelling is the world's smelliest flower? A roundup of stinky flower varieties
Generally speaking, flowers win fans with their outstanding looks or their innate fragrance. However, where there is fragrance in this world, there is also stench, and it turns out that some flowers attract insects for pollination by giving off a foul smell. Below is a roundup of the world's smelliest flowers. Titan arum The titan arum is a herbaceous plant with an enormous flower; its blooming period is short,
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