Table of Contents
- 1 How does a cotton strainer eat?
- 2 What is the cotton strainer in cotton?
- 3 Is cotton strainer an insect?
- 4 What mouthparts are in a red cotton bug?
- 5 Why red cotton bug is called Red Stainer?
- 6 What type of mouthparts do insects have?
- 7 What does Dysdercus suturellus do to cotton?
- 8 How are the mouthparts of insects adapted to their function?
How does a cotton strainer eat?
Both adults and nymphs feed on developing pods and seeds, piercing them to suck sap, thereby reducing yield. Attacked young fruits shrivel and then dry. Feeding on mature fruits results in damage to the seeds. Stainers also attack cotton and they live on baobab and silk cotton (kapok) trees.
What is the cotton strainer in cotton?
: any of several bugs (genus Dysdercus) that damage and stain the lint of developing cotton especially : a red and brown bug (D. suturellus) that attacks cotton in the southern U.S.
What do cotton stainer bugs do?
The genus Dysdercus is one of the most destructive cotton pests in North America and India. This cotton stainer damages cotton plants by sucking the sap and destroys the cotton bolls by staining them with excrement.
How do cotton stainer reproduce?
Life cycle. Cotton stainers mate 2-6 days after their final moult and remain in copula until the first oviposition which takes place. 2-8 days later. The egg laying period lasts for 20-66 days; eggs being laid in batches of up to 100 in moist soil or plant debris, and hatching after 5-8 days.
Is cotton strainer an insect?
Dysdercus cingulatus is a species of true bug in the family Pyrrhocoridae, commonly known as the red cotton stainer. It is a serious pest of cotton crops, the adults and older nymphs feeding on the emerging bolls and the cotton seeds as they mature, transmitting cotton-staining fungi as they do so.
What mouthparts are in a red cotton bug?
A series of white transverse bands are present on the ventral side of the abdomen. Mouthparts are adapted for piercing and sucking. They form a straight beak or rostrum. The nymphs are smaller than adults and are wingless.
What is economic importance of cotton stainer?
Economic importance: larvae bore into, pupate in, and feed on seed causing reduction of grain to powder. COTTON STAINER: Economic importance: it causes leaf distortion and transmission of virus disease. It also feeds on the content of the boil.
What is the scientific name of cotton stainer?
Dysdercus suturellus (Herrich-Schäffer)
Why red cotton bug is called Red Stainer?
Dysdercus koenigii is a species of true bug in the family Pyrrhocoridae, commonly known as the red cotton stainer. It is a serious pest of cotton crops, the adults and older nymphs feeding on the emerging bolls and the cotton seeds as they mature, transmitting cotton staining fungi as they do so.
What type of mouthparts do insects have?
Insect mouthparts are of two main types: chewing and piercing-sucking (Figure 3). Some insects have modifications of these two basic types. Mouthparts determine how an insect feeds and therefore play a role in the type of insect control that is most effective.
What are the different kinds of mouthparts in insects?
- Labrum – a cover which may be loosely referred to as the upper lip.
- Mandibles – hard, powerful cutting jaws.
- Maxillae – ‘pincers’ which are less powerful than the mandibles.
- Labium – the lower cover, often referred to as the lower lip.
- Hypopharynx – a tongue-like structure in the floor of the mouth.
How are the tissues of the mouth adapted to their function?
Over many eons of time, tissues and appendages near the mouth opening came to be adapted for gathering and manipulating bits of solid food. As insects evolved, they became more complex, expanded in range, and adapted to new food resources.
What does Dysdercus suturellus do to cotton?
A grower at Hawthorne, Florida, in 1902 ginned about 1,000 bales of long-staple cotton, of which about 200 bales were classed as stained. Dysdercus suturellus punctures and sucks young bolls, preventing them from coming to maturity.
How are the mouthparts of insects adapted to their function?
As insects evolved to feed on a wider variety of food resources, their mouthparts adapted accordingly through natural selection. In some cases, an individual component of the mouthparts became specialized for a new function. In weevils, for example, the front of the head is elongated into a long, slender proboscis.
Why are two strainers used in a duplex system?
Basket type strainers are commonly found in a duplex arrangement. A second strainer is placed in parallel with the primary strainer, and flow can be diverted through either of the two strainers. This facilitates cleaning of the strainer unit whilst the fluid system is still operating, reducing the downtime for maintenance.