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Fungi, plants and herbivore population sizes can have a cyclical predator-prey pattern. Infection rates of endophytic fungi in plants tend to increase with rise in grazing pressure. [111] If endophytic fungi becomes highly prevalent in grazer food sources, it can even lead to population crashes in grazing animals. [111]
The patterns may appear on a few or many leaves. Plants are infected by this virus at propagation using infected plant material. [4] Rose wilt – Rose wilt is a complex of viruses and is referred to as "dieback" in some areas. The disease can be spread by vectors such as aphids. Symptoms are variable and range from stunted growth to curled ...
repels aphids, cabbage looper, flea beetles, squash bugs, whiteflies, and the Small White [3] Petunias: repel aphids, tomato hornworm, asparagus beetles, leafhoppers, [2] and squash bugs [3] Pitcher plants: traps and ingests insects Radish: repels cabbage maggot and cucumber beetles [3] Rosemary
Lightning strikes kill or injure plants, from root crops like beet and potato, which are instantly cooked in the ground, to trees such as coconut, through effects such as sudden heat and pressure shock waves created when water inside the plant flashes to steam. This can rupture stems and scorch any plant parts. [8] Ozone, a gas, causes injury ...
They can be made with enough precision to target specific insect species. Monsanto is developing an RNA spray to kill Colorado potato beetles. One challenge is to make it stay on the plant for a week, even if it's raining. The potato beetle has become resistant to more than 60 conventional insecticides. [11]
When you're dining outdoors, it's important to take measures to prevent ants, flies and other insects from eating off your plate. Don't let these uninvited guests ruin your next picnic or patio ...
Syrphus hoverfly larva (below) feed on aphids (above), making them natural biological control agents. A parasitoid wasp (Cotesia congregata) adult with pupal cocoons on its host, a tobacco hornworm (Manduca sexta, green background), an example of a hymenopteran biological control agent
If you're already watching what you eat, you may want to take a closer look. There are some common food items possibly in your home that could actually kill you. Scroll through to learn about ...