Broad mite

attack of broad mite ( Polyphagotarsonemus latus ), is the appearance of dark brown edges at the base of young leaves. In case of a mild infestation, one [...] s latus) occurs in the tropics and in greenhouses in temperate regions. The broad mite (Polyphagotarsonemus latus) has a wide range of host plants, especially [...] network on the leaves. In case of a more serious infestation, this network becomes so dense that there is no more green tissue visible. In most cases, the main

Diamond back moth

species. It is highly migratory and wind-borne adults can travel long distances to invade crops in other regions. Damage symptoms The caterpillar is a surface [...] They are deposited singly or in small groups of two or ten eggs on both the upper and lower surface of leaves, preferentially in depressions, and rarely on [...] and frequently hide in crevices near the bud. In cauliflower and broccoli, pupation may occur in the florets. Initially, the pupa is pinkish-white to p

Papaya

that is called papaya, papaw or pawpaw in different countries, is the fruit of the Carica papaya tree of the family Caricaceae. First cultivated in Mexico [...] Mexico, it is now grown in most tropical regions around the world. The papaya fruit is 15-45 cm in length and between 10-30 cm in diameter. Its soft skin [...] skin is an amber to orange colour.

Charcoal rot

Macrophomina phaseolina is a common soil fungus in warmer regions, causing charcoal rot. It has a very wide range of host crops, many of which are economically [...] crops in temperate regions it is therefore not a problem. How to prevent Charcoal rot Plant in fields with no history of the disease Use disease-free planting [...] food crops. Damage symptoms In strawberry, this pathogen causes wilting of foliage, stunting of plants and drying and death of older leaves. The youngest

Citrus mealybug

effect is a reduction of photosynthesis and therefore the yield. Flowers and fruit often drop off. Plant sap is rich in sugars, but low in proteins. In order [...] many and diverse host plants. In temperate regions of the world this mealybug poses a problem in greenhouse horticulture, and in the tropics and sub-tropics [...] an adequate intake of protein, mealybugs must therefore ingest large quantities of sap, getting rid of the excess sugars in the form of honeydew. Charac

Oleander aphid

aphid is cosmopolitan, and can be found in tropical to warm temperate regions throughout the world. It probably originated in the Mediterranean region, the [...] the milkweed aphid, is a common pest of several important ornamental plants in the families Apocynaceae and Asclepiadaceae. It is commonly found feeding [...] the origin of its principal host plant, oleander. Damage symptoms The colonies of bright yellow aphids can easily be seen on the shoots of the host plants

Guava

tropical fruit is cultivated in many tropical and subtropical regions. A vivid yellow or green on the outside, Psidium guaiava, is the fruit of the Myrtle [...] smallish tree. The pulp varies from off-white to bright pink, and is between 4 to 12 cm in length. The taste ranges from tart to very sweet.

Wheat

specifically the Levant region that lies east of the Mediterranean. The wheat plant is an annual plant which is sown either in spring or autumn. The plant [...] the end of May to the beginning of June. This flowering period is rather long (usually lasting longer than a week), because not all flowers of one single [...] Wheat ( Triticum spp., most commonly T. aestivum ) is a cereal grain, but botanically a particular type of fruit referred to as caryopsis. Wheat originates

Tomato

year in temperate climate, but in greenhouses they can sometimes sustain up to three years. A great number of tomato varieties is now cultivated in temperate [...] lycopersicum) belongs to the nightshade family of Solanaceae . The tomato is the edible fruit of this plant. The plant is native to Central and South America and [...] plants usually grow to a height of between 1-3 metres (or 3-10 feet). Their stem is not so strong, so if not supported (like in a greenhouse) the stem often

Avocado

), also named ‘alligator pear’ is a tree originating in South Central Mexico. Its nick name points to its fruit which is botanically speaking a large berry [...] speaking, avocados are very valuable and the fruit is produced in tropical and Mediterranean regions. Avocados ripen only after they are harvested. [...] The berry is green-skinned and fleshy and its shape resembles a pear or (large) egg. The avocado tree belongs to the flowering plant family of Lauraceae